if a diffraction grating produces its third-order bright band at an angle of 78.4 for light of wavelength 681 m, find:
Answers
When light passes through a diffraction grating, it diffracts into a series of bright and dark bands. The angular position of the bright bands depends on the wavelength of the light and the spacing of the grating lines.
In this problem, we are given the angle and wavelength of the third-order bright band produced by a diffraction grating, and we are asked to find the spacing between the grating lines. To solve this problem, we'll use the formula for the angular position of a bright band produced by a diffraction grating:
θ = mλ/d
where θ is the angular position of the bright band, m is the order of the bright band, λ is the wavelength of the light, and d is the spacing between the grating lines.
We know that the third-order bright band is produced at an angle of 78.4° for light of wavelength 681 nm.
Therefore, we can write:78.4° = 3(681 nm)/d
Simplifying and solving for d, we get:
d = 3(681 nm)/78.4°≈ 2.487 × 10⁻⁶ m
We can convert this to micrometers (μm) by multiplying by 10⁶:2.487 × 10⁻⁶ m = 2.487 μm
Therefore, the spacing between the grating lines is approximately 2.487 μm.
To know more about diffraction grating visit :
https://brainly.com/question/30409878
#SPJ11
Related Questions
If a bullet of mass 50 gm is moving with the velocity of 720 km/hr. Calculate its kinetic energy. Ans: here, mass (m)= 50 gm = 50/1000 kg = 0.05 kg velocity (v) = 720 km/hr= 720×1000/60×60=200m/s kinetic energy = ? We know, K.E.= 1/2 mv^2 = 1/2 × 0.05×(200)^2 = 0.05×40000/2 = 1000j ans. Is it correct???????
Answers
Answer:
yes 1000 j as I posted on the same Q elsewhere
Explanation:
Which statements about velocity are true?
1. The symbol for velocity is
2. For velocity, you must have a number, a unit, and a direction
3. To calculate velocity, divide the change in the distance by time
4. The SI units of velocity are m/s
Answers
Statements that are true about velocity are: 2. For velocity, you must have a number, a unit, and a direction and 4.The SI units of velocity are m/s.
What is velocity?Velocity is the rate at which displacement changes. Speed is a constant, but velocity is a vector quantity. It has both direction and magnitude, therefore this indicates. While seconds are the SI unit of time, meters are the SI unit of displacement. Meters per second will therefore be the SI units for velocity.
The direction speed of an item in motion as measure of the rate at which its location is changing as seen from certain point of view and as measured by specific unit of time is called velocity.
To know more about velocity, refer
https://brainly.com/question/25749514
#SPJ1
Lines e and f are parallel. the mangle9 = 80° and mangle5 = 55°. parallel lines e and f are cut by transversal c and d. all angles are described clockwise, from uppercase left. where lines e and c intersect, the angles are: 1, 2, 4, 3. where lines f and c intersect, the angles are 5, 6, 8, 7. where lines e and d intersect, the angles are 9, 10, 12, 11. where lines f and d intersect, the angles are 13, 14, 16, 15. which angle measures are correct? select three options. mangle2 = 125° mangle3 = 55° mangle8= 55° mangle12 = 100° mangle14 = 100°
Answers
We can use the properties of parallel lines and transversals to determine the measures of the angles.
From the given information, we know that lines e and f are parallel, and the angles 9 and 80° form a linear pair, which means that angle 9 measures 180° - 80° = 100°.
Similarly, angle 5 and 55° form a linear pair, so angle 5 measures 180° - 55° = 125°.
Using the alternate interior angles property, we know that angles 3 and 8 are congruent, and both are equal to angle 5 - angle 4 = 125° - 80° = 45°. Therefore, option (ii) is incorrect.
Using the corresponding angles property, we know that angles 12 and 6 are congruent, and both are equal to angle 9 + angle 80° = 100° + 80° = 180°. Therefore, option (iv) is correct.
Using the vertical angles property, we know that angles 14 and 2 are congruent, and both are equal to angle 80°. Therefore, option (v) is correct.
Therefore, the correct options are (i) mangle2 = 125°, (iv) mangle12 = 100°, and (v) mangle14 = 100°.
How does water from the ocean return to lakes in the mountains?
OA. Rivers bring water away from the oceans and to the mountains.
OB. Underground water reservoirs move water from the ocean to the mountains.
OC. The rotation of the Earth causes evaporation of the ocean's water, which allows the winds to blow the moisture to the mountains.
OD. The sun's energy causes vaporation of the ocean's water, which condenses into clouds, precipitates, and refills bodies of water in
the mountains.
Answers
Answer:
OD. The sun's energy causes vaporation of the ocean's water, which condenses into clouds, precipitates, and refills bodies of water in
the mountains.
Explanation:
It is called the water cycle.
Answer:)
The sun's energy causes vaporation of the
ocean water, which condenses into clouds,
precipitates, and refills bodies of water in
the mountains.
hope it helps:)
brainliest pls<3
What type of reproduction occurs when a cell divides to form two new cells?
a. autotrophic b. heterotrophic c. asexual reproduction d. sexual reproduction
Answers
Answer:
d. sexual reproduction
Explanation:
A single cell divides to make two cells and these two cells then divide to: we call this process "cell division" and "cell reproduction," and there are two ways cells divide—mitosis and meiosis. This is all part of sexual reproduction.
The cross country team goes on a 10 mile run after school. They end the run outside of the locker room where they started fund the distance and displacement of runner
Answers
Distance = 10 miles
Displacement = zero
The coach must be fired and disciplined.
An equation in the form y
′
+p(x)y=q(x)y
n
with n
=0,1 is called a Bernoulli equation and it can be solved using the substitution v=y
1−n
which transforms the Bernoulli equa v
′
+(1−n)p(x)v=(1−n)q(x) Given the Bernoulli equation y
′
+
4
3
y=3e
2x
y
−7
Answers
The given equation is a Bernoulli equation in the form y' + p(x)y = q(x)yⁿ, where n is not equal to 0 or 1. To solve this equation, we can use the substitution v = y(1-n).
First, let's rewrite the given Bernoulli equation in terms of v:
v' + (1-n)p(x)v = (1-n)q(x)
Now, let's solve the equation step by step:
1. Identify the values of p(x) and q(x) in the equation. In this case, p(x) = 4/3 and q(x) = 3e(2x) - 7.
2. Substitute the values of p(x) and q(x) into the equation:
v' + (1-n)(4/3)v = (1-n)(3e(2x) - 7)
3. Simplify the equation by distributing (1-n) to the terms:
v' + (4/3 - 4n/3)v = 3e(2x)(1-n) - 7(1-n)
4. Now, we have a first-order linear ordinary differential equation. To solve it, we need to find an integrating factor. The integrating factor is given by e(∫(4/3 - 4n/3)dx).
5. Integrate (4/3 - 4n/3)dx to find the integrating factor. The result will depend on the value of n.
6. Once we have the integrating factor, multiply it to the entire equation:
e(∫(4/3 - 4n/3)dx) * (v' + (4/3 - 4n/3)v) = e(∫(4/3 - 4n/3)dx) * (3e(2x)(1-n) - 7(1-n))
7. The left side of the equation is now a derivative of a product:
(e(∫(4/3 - 4n/3)dx) * v)' = e(∫(4/3 - 4n/3)dx) * (3e(2x)(1-n) - 7(1-n))
8. Integrate both sides of the equation:
∫(e(∫(4/3 - 4n/3)dx) * v)'dx = ∫(e(∫(4/3 - 4n/3)dx) * (3e(2x)(1-n) - 7(1-n)))dx
9. On the left side, we can simplify the integral:
e(∫(4/3 - 4n/3)dx) * v = ∫(e(∫(4/3 - 4n/3)dx) * (3e(2x)(1-n) - 7(1-n)))dx
10. Solve the integral on the right side and simplify the equation further.
11. Finally, solve for v and substitute back the value of y in terms of v to find the solution to the Bernoulli equation.
Learn more about Bernoulli equation from given link
https://brainly.com/question/15396422
#SPJ11
How do you solve this ?
Answers
identical blocks oscillate on the end of a vertical spring, one on earth and one on the moon. where is the period of the oscillations greater?
Answers
The period of oscillation for the blocks attached to a vertical spring would be greater on the Moon compared to Earth.
The period of an oscillating system depends on the mass of the object and the stiffness of the spring. The force exerted by the spring is given by Hooke's Law, which states that the force is proportional to the displacement from the equilibrium position.
On the Moon, the acceleration due to gravity is much smaller compared to Earth (about 1/6th of Earth's gravity). This means that the force exerted by the spring on the blocks would be weaker on the Moon due to the lower gravitational force.
Since the force exerted by the spring is weaker on the Moon, it would take more time for the blocks to complete one full oscillation (period) compared to Earth, where the force exerted by the spring is stronger due to higher gravitational force.
Therefore, the period of oscillation would be greater for the blocks attached to a vertical spring on the Moon compared to Earth.
To know more about oscillation refer here
https://brainly.com/question/30111348#
#SPJ11
slide the wavelength bar to the highest possible value. what happens to the diffraction pattern? now slide the wavelength to the lowest possible value. what happens to the diffraction pattern?
Answers
When the wavelength is slid to the highest possible value, the diffraction pattern becomes more spread out and less defined. This is because longer wavelengths diffract more and have a lower resolution. On the other hand, when the wavelength is slid to the lowest possible value, the diffraction pattern becomes more narrow and defined.
This is because shorter wavelengths diffract less and have a higher resolution. In summary, the value of the wavelength directly affects the diffraction pattern, with longer wavelengths leading to more diffraction and lower resolution, and shorter wavelengths leading to less diffraction and higher resolution.A white piece of paper would have an identical reflectance curve for long, medium, and short wavelengths.
The perfectly reflecting surfaces of white piece of paper serve to completely reflect all incident radiations without any absorption or transmission. A white sheet of paper would therefore reflect all wavelengths equally, long, medium, and short.
Learn more about wavelength here
https://brainly.com/question/13533093
#SPJ11
EASY BRAINLIEST PLEASE HELP!!
-if you answer correctly ill give you brainliest which will give you 90pts-
(if you put links or don't answer accordingly im reporting your account)
Explain how a compass can get you out of the woods if you are lost.
Answers
Answer:
Explanation:
A compass always (or usually always) points to the magnetic north. If you came in from the south east and got lost, it will point north and you can adjust the way you travel by going 90 off of where the compass points. Keep walking on that line until you hit a place that you recognize and there is no more need for the compass.
Answer: The first thing you have to do is locate east on your compass housing. Turn your compass until you see that east lines up directly with your direction of travel arrow. Quite simply, that is the direction you want to walk. You can do this for any direction.
Explanation:
Explain what a transit is and why transits were being pursued by the Kepler Mission.What information could you gather about a star if its light curve had multiple symmetrical depths of varying sizes?What were two important data points in the light curve of star KIC 8462852 that confused astronomers between May 2009 and February 2013? Which of these seem the most confusing to you? Why?Based on the knowledge you gained from the video and the data that you've seen, what do you think is creating the data that Kepler gathered? Explain your answer.
Answers
A transit refers to the phenomenon when a celestial object, such as a planet or an exoplanet, passes in front of its host star as observed from a particular vantage point. When a transit occurs, there is a slight decrease in the brightness of the star, which can be detected by measuring its light curve over time.
The duration and depth of the transit can provide valuable information about the orbit, size, and other characteristics of the transiting object. The Kepler Mission was specifically designed to search for exoplanets by monitoring the brightness of thousands of stars continuously. By detecting and analyzing transits, Kepler aimed to identify and characterize exoplanets orbiting distant stars. Transits allow astronomers to infer properties such as the size, orbital period, and distance of the planets from their host stars. Kepler's primary goal was to determine the frequency of Earth-sized planets in the habitable zones of their stars, where liquid water could potentially exist. If a star's light curve had multiple symmetrical depths of varying sizes, it could indicate the presence of multiple transiting objects orbiting the star. The depths of the transits would correspond to the sizes of the objects, while the varying sizes would suggest different orbital distances or periods. This information could be used to study the architecture of planetary systems, identify potential exomoons, or even detect non-planetary objects such as stellar companions or debris disks. In the light curve of star KIC 8462852, two important data points confused astronomers between May 2009 and February 2013. First, there were irregular and significant dips in brightness, with depths reaching up to 20%. Second, the dips exhibited complex and asymmetric shapes, unlike the typical smooth and symmetrical transits observed in exoplanet studies. These unusual features puzzled astronomers and sparked various hypotheses to explain the phenomenon, including the possibility of an alien megastructure or a swarm of comets. Among these data points, the complex and asymmetric shapes of the dips in brightness were particularly perplexing. Such shapes were not consistent with the expected behavior of transiting exoplanets or any known astrophysical phenomenon. The irregularity and unpredictability of the dips added to the confusion, as it was challenging to attribute them to a single, straightforward explanation. Based on the information gathered from the video and the data observed, it is difficult to determine the exact cause of the peculiar data gathered by Kepler for star KIC 8462852. Several hypotheses have been proposed, including the presence of a swarm of comets or fragments from a disintegrated planet, intervening dust clouds, or intrinsic variability of the star itself. However, further observations and investigations are necessary to reach a conclusive understanding of the phenomenon and rule out alternative explanations.
To know more about Kepler Mission
https://brainly.com/question/28167962
#SPJ11
The sun is a relatively young star, near the beginning of its life. T/F
Answers
True, The sun is a relatively young star, near the beginning of its life. A star is a celestial object that creates light and heat.
They form from dense clouds of gas and dust in space known as nebulae. In general, stars are classified into three categories depending on their mass, composition, and luminosity.Stars in their early life stages are young and have not reached the later stages of their life yet.
They also have more energy and are hotter than stars that have reached later stages. The sun is a relatively young star, near the beginning of its life. It is classified as a G-type main-sequence star, which means it's a mid-sized star with a surface temperature of about 5,500 degrees Celsius.The sun, like all stars, formed from a cloud of gas and dust, and its energy comes from nuclear fusion reactions in its core. As it converts hydrogen into helium, it emits light and heat. It will continue to do so for billions of years to come.
Learn more about celestial Visit : brainly.com/question/30244024
#SPJ11
A particle was moving in a straight line at 172.8 km/hr. If it decelerated over 120 meters to come to rest, find the time taken to cover this distance.
Answers
Answer:
v=s/t
s=vt
t=s/v
t=(120×10‐³)/172.8
(the distance meters has been changed to kilometres)
t=1/1440 hrs
Given ,
When making a lane change on the Interstate, you should always
Answers
Answer: When you change lanes, follow these steps:
Turn on your signal.
Check your mirrors.
Check your blind spot by looking over your shoulder.
If it is safe, change lanes.
Turn off your signal after completing the lane change.
Explanation: urwellcome
Answer:
Turn on your turn signal, and check for cars behind and in front of you.
Explanation:
It is important to check for cars because you may crash and injure/die. So stay safe!
The angular resolution of a radio wave telescope decreases with
decrease disc size. true or false
Answers
The angular resolution of a radio wave telescope decreases with decreased disc size which is false.
The angular resolution of a radio wave telescope actually increases with a decrease in dish size. Angular resolution refers to the ability of a telescope to distinguish between two closely spaced objects in the sky. It is determined by the size of the telescope's aperture or dish.
In general, the larger the aperture or dish size of a telescope, the better its angular resolution. A larger dish collects more incoming radio waves, allowing for finer details to be resolved. Smaller dishes, on the other hand, have limited collecting area and, therefore, lower angular resolution. This is why larger radio telescopes are often preferred for high-resolution observations.
So, to achieve better angular resolution, one would typically need a larger dish size for a radio wave telescope.
To learn more about angular resolution click here
https://brainly.com/question/30585791
#SPJ11
Which type of protist is animal AND plant like?
Answers
Answer:
Protists are called plant-like, fungus-like and animal-like because they share some of the characteristics of plants, fungi and animals, even though they belong in a different category: the kingdom Protista.
Explanation:
What do we need to do to be carbon neutral?
Answers
To be carbon neutral we need to offset your remaining emissions, which can be done by making financial contributions to initiatives that reduce atmospheric concentrations of greenhouse gases.
What does it mean to be carbon neutral?Achieving a balance between releasing carbon into the atmosphere and storing it in carbon sinks is necessary to achieve carbon neutrality. The process of extracting carbon dioxide from the atmosphere and later storing it is known as carbon sequestration.Which examples are carbon neutral?When the term "carbon-neutral" refers to balancing out the overall quantity of carbon emissions, "net-zero carbon" means no carbon was emitted from the start; as a result, no carbon needs to be caught or offset. For instance, a company may claim their energy is "zero carbon" if all of the energy used to power its facility comes from solar energy, with no fossil fuels used at all.To know more about carbon-neutral visit:-
brainly.com/question/29775361
#SPJ4
Which of the following countries is a dictatorship as of 2019
The United States
Germany
North Korea
Turkey
Answers
Answer:
North Korea I'm pretty sure
A toy car is moved 8m, right, then 1.5m, right, and finally 3.0m, left. If it took 5.0 seconds total for the car to travel its 3 routes, then what is the average speed of the toy car?
Answers
Answer:
2.7
Explanation:
V=s÷t
v=13.5÷5.0
V=2.7
A spring with a constant K is pulled back a distance X and allowed to oscillate with a period T on a horizontal frictionless surface. As the mass passes through the equilibrium positions the force of the spring is
Answers
As the mass passes through the equilibrium positions the force of the spring is increasing.
Simple harmonic motion is a specific kind of periodic motion of a body that arises from a dynamic equilibrium between an inertial force that is proportional to the body's acceleration away from the static equilibrium position and a restoring force on the moving object that is directly proportional to the magnitude of the object's displacement and acts towards the object's equilibrium position. Oscillating spring perform SHM.
as the mass passes through the equilibrium position, at the equilibrium position the force is zero and it increases with increase in displacement x according to the relation F = kx.
To know more about Spring :
https://brainly.com/question/14670501
#SPJ4.
Alex drops a soccer ball and a table tennis ball from the top of a ladder. He wants to compare the velocities of the balls just before they hit the ground.
Which formula should Alex use to calculate the velocity of each ball,
assuming they are in free fall?
A) v=Gt
B) g=vt
C) t=vg
D) v=G/t
Answers
Answer:
d is the correct answer
Explanation:i did this math
Đặt vào 2 đầu dây dẫn 1 hiệu điện thế 12V thì cho được cường độ dòng điện qua dây là 2A . Hãy tính hiệu điện thế phải đặt vào 2 đầu dây để cường độ dòng điện chạy qua dây tăng thêm 0,5A nữa?
Answers
Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.
Explanation:
A student uses a 320 Hz tuning fork during a lab investigation into the speed of sound. If the air temperature in the classroom is 20
degrees Celsius, what is the wavelength of the sound waves produced by the tuning fork?
Answers
Answer:
Hecht.
Explanation:
An NPN transistor has an α parameter of 0.9934 and a base current of IB = 25μA. Calculate the following parameters:
a) current gain β
b) collector current IC
c) emitter current IE
Answers
Sure, I can help you with that! To start, we need to know the formula for calculating the current gain β of an NPN transistor:
β = IC / IB
where IC is the collector current and IB is the base current. We also know that α = 0.9934, which is the current gain due to the transistor's internal construction.
a) To calculate β, we can use the formula and the given values:
β = IC / IB
β = α / (1 - α) * IB
β = 0.9934 / (1 - 0.9934) * 25μA
β ≈ 375.67
Therefore, the current gain β is approximately 375.67.
b) To calculate the collector current IC, we can use the formula:
IC = β * IB
IC = 375.67 * 25μA
IC ≈ 9.39mA
Therefore, the collector current IC is approximately 9.39mA.
c) To calculate the emitter current IE, we can use Kirchhoff's current law, which states that the sum of the currents entering a junction is equal to the sum of the currents leaving the junction:
IE = IC + IB
IE = 9.39mA + 25μA
IE ≈ 9.41mA
Therefore, the emitter current IE is approximately 9.41mA.
I hope that helps! Let me know if you have any other questions.
Learn more about transistor here:
https://brainly.com/question/30663677
#SPJ11
6. Determine the work done by the external force when a charge = 20 nC is displaced from an initial point at potential 300 V to a final po…
Answers
Explanation:The work done by an external force when a charge is displaced from one point to another in an electric field is given by the equation:
W = q * (Vf - Vi)
where W is the work done, q is the charge of the particle, Vf is the final potential and Vi is the initial potential.
Given a charge of 20 nC (20 x 10^-9 C) and an initial potential of 300 V, the final potential can be any value. To determine the work done, we simply plug in the values into the equation:
W = 20 x 10^-9 C * (Vf - 300 V)
To learn more about external force,
https://brainly.in/question/42895019
What is the speed of a snail moving at a rate of 3 inches per minute in [m/s]? Recall that 1 [m] = 39 [in]. Round to the nearest ten thousandth (4 places after the decimal).
Answers
Answer:
0.0013 m/s
Explanation:
Speed in inches per minute = 3 inches per minute
Speed in m/s =?
Next, we shall convert 3 inches per minute (3 in/min) to metre per minute.(m/min)
39 in/min = 1 m/min
Therefore,
3 in/min = 3 in/min × 1 m/min / 39 in/min
3 in/min = 1/13 m/min
Finally, we shall convert 1/13 m/min to m/s. This can be obtained as follow:
1 m/min = 1/60 m/s
Therefore,
1/13 m/min = 1/13 m/min × 1/60 m/s / 1 m/min
1/13 m/min = 1/780 m/s
1/13 m/min = 0.0013 m/s
Thus, 3 in/min is equivalent to 0.0013 m/s.
Therefore the speed of the snail in m/s is 0.0013 m/s
La velocidad de la luz es de 300 000 km/s, convertir a m/s.
ayudenme porfa
Answers
A person yelling is a transformation of what energy
Answers
Answer: force
Explanation:
a ball is thrown upward with initial velocity of 20 m/s. (a) how long is the ball in the air? (b) what is the greatest height reached by the ball? (c) when is the ball 15 m above the ground?
Answers
a) t = 4.08 s
b) Response = 20.39m
c) t = 0.991 and 3.087 seconds.
Initially, the vertical speed was 20 m/s.
(a) how long is the ball in the air?
The ball is tossed upward, rises to its highest point, and then hits the ground again.
Consequently, the end height will be equal to the starting height.
h = h o = Om
Use the equation s= ut + -at.
2764 – An = 14
Put a negative sign for g because the ball is being thrown upwards and g is acting downwards.
Om = t - 0.5 * 9.81 m/s * 20 m/s
0 = 20 *t - 0.5 * 9.81 *t
20 *t=0.5*9.81 *t
20 = 0.5 * 9.81 *t
20 0.5*9.81
Answer (a): t = 4.08 s
(b) what is the greatest height reached by the ball?
Vertical velocity for the ball decreases to zero when it reaches its highest point.
Use the equation 2-u=295
-2ghmas for - u
(20m/s - (Om/s)2) = -2 * 9.81 m/s2 *
02 – 20= -2*9.81 *
-20% = -2 *9.81 *
202 = 2 * 9.81 *
b) RESPONSE: H = 20.39m
(c) when is the ball 15 m above the ground?
The ball will be 15 meters above the earth on two separate occasions.
1. When climbing
2. When descending
Use the equation s= ut + -at.
2,264 – fn = 4
0.5 * 9.81 m/s * 15m = 20 m/s*t
15 = 20 *t - 0.5 * 9.81 *t
15 = 20t – 4.9057
4.905 – 20t + 15 = 0
Calculator-based quadratic equation solution
(c) t = 0.991 and 3.087 seconds.
Hence the answers are,
a) t = 4.08 s
b) RESPONSE: Hmar = 20.39m
c) t = 0.991 and 3.087 seconds.
To learn more about initial velocity, click https://brainly.com/question/14154244
#SPJ4