1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
3241004551 [841]
4 years ago
6

A diffraction grating with 750 slits per mm is illuminated by light which gives a first-order diffraction angle of 34.0°. What i

s the wavelength of the light?
Physics
1 answer:
lesya [120]4 years ago
6 0
<h2>Answer: 745.59 nm</h2>

Explanation:

The diffraction angles \theta_{n} when we have a slit divided into n parts are obtained by the following equation:

dsin\theta_{n}=n\lambda (1)

Where:

d is the width of the slit

\lambda is the wavelength of the light  

n is an integer different from zero

Now, the first-order diffraction angle is given when n=1, hence equation (1) becomes:

dsin\theta_{1}=\lambda (2)

We know:

\theta_{1}=34\°

In addition we are told the diffraction grating has 750 slits per mm, this means:

d=\frac{1mm}{750}

Solving (2) with the known values we will find \lambda:

\lambda=(\frac{1mm}{750})sin(34\°) (3)

\lambda=0.00074559mm (4)

Knowing 1mm=10^{6}nm:

\lambda=745.59nm  >>>This is the wavelength of the light, wich corresponds to red.

You might be interested in
Find the mass if the force is 18 N and the acceleration is 2 m/s2.
Flura [38]

Answer:

<h3>The answer is 9 kg</h3>

Explanation:

To find the mass given the force and acceleration we use the formula

m =  \frac{f}{a}  \\

where

f is the force

a is the acceleration

We have

f = 18 N

a = 2 m/s²

We have

m =  \frac{18}{2}  \\

We have the final answer as

<h3>9 kg</h3>

Hope this helps you

4 0
3 years ago
After watching a video about submarines, Jamil wants to learn more about the ocean. which question could be answered through sci
SOVA2 [1]
<span>Submarines are equipped with water tanks called ballast tanks that fill up to submerge the vessel. Emptying the tanks and filling them with air causes the submarine to surface.</span>
5 0
3 years ago
How people get along with one another is called
Orlov [11]
I am not sure what kind of answer you are looking for but the start of friendship.
5 0
3 years ago
Một cần trục có trọng lượng Q = 50 kN cẩu vật nặng có trọng lượng P = 10 kN
lesantik [10]

5

3373727227717177

Explanation:

yun hehew

8 0
3 years ago
Read 2 more answers
Amanda has started running as her primary form of exercise, but she's getting bored with it and finds excuses to procrastinate.
blsea [12.9K]

AnswerB

Explanation:

Just get good

KIDDDDDD

4 0
2 years ago
Read 2 more answers
Other questions:
  • The following is a chemical reaction for _______ with ozone.
    11·2 answers
  • Two identical loudspeakers are driven in phase by the same amplifier. The speakers are positioned a distance of 3.2 m apart. A p
    10·1 answer
  • Light is a ________ wave.<br> A. surface <br> B. transverse <br> C. longitudinal <br> D. mechanical
    9·1 answer
  • 19. A person goes to the doctor and will need a 3-month prescription of medicine. The person will be required to take 3 pills pe
    7·1 answer
  • Which of the following statements is correct regarding transformers?
    12·2 answers
  • Which of the following are metalloid elements?
    11·2 answers
  • In February 1955, a paratrooper fell 370 m from an airplane without being able to open his chute but happened to land in snow, s
    10·1 answer
  • Garrett throws a large rock into a waveless pond. The impact of the rock hitting the water causes waves to travel along the pond
    6·2 answers
  • One alternative to burning non-renwable fuels, which harm the environment, could be to burn:
    11·1 answer
  • Which of the following ocean-floor features would contain the newest rocks?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!