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
kkurt [141]
3 years ago
8

You are comparing two diffraction gratings using two different lasers: a green laser and a red laser. You do these two experimen

ts
1. Shining the green laser through grating A you see the first maximum 1 meter away from the center
2. Shining the red laser through grating B, you see the first maximum 1 meter away from the center

In both cases, the gratings are the same distance from the screen.

(a) What can you deduce about the gratings?
(b) What would you observe if you shone the green laser through grating B:?

a. (a) grating A has more lines/mm; (b) the first maximum less than 1 meter away from the center
b. (a) grating B has more lines/mm; (b) the first maximum less than 1 meter away from the center
c.(a) grating B has more lines/mm; (b) the first maximum more than 1 meter away from the center
d. (a) grating B has more lines/mm: (b) the first maximum 1 meter away from the center
e. (a) grating A has more lines/mm; (b) the first maximum more than 1 meter away from the center
f. (a) grating A has more lines/mm; (b) the first maximum 1 meter away from the center
Physics
1 answer:
Nikolay [14]3 years ago
5 0

Answer:

a. (a) grating A has more lines/mm; (b) the first maximum less than 1 meter away from the center

Explanation:

Let  n₁ and n₂ be no of lines per unit length  of grating A and B respectively.

λ₁ and λ₂ be wave lengths of green and red respectively , D be distance of screen and d₁ and d₂ be distance between two slits of grating A and B ,

Distance of first maxima for green light

= λ₁ D/ d₁

Distance of first maxima for red light

= λ₂ D/ d₂

Given that

λ₁ D/ d₁ = λ₂ D/ d₂

λ₁ / d₁ = λ₂ / d₂

λ₁ / λ₂  = d₁ / d₂

But

λ₁  <  λ₂

d₁ < d₂

Therefore no of lines per unit length of grating A will be more because

no of lines per unit length  ∝ 1 / d

If grating B is illuminated with green light first maxima will be at distance

λ₁ D/ d₂

As λ₁ < λ₂

λ₁ D/ d₂ < λ₂ D/ d₂

λ₁ D/ d₂ < 1 m

In this case position of first maxima will be less than 1 meter.

Option a is correct .

You might be interested in
What must be true about a surface in order for diffuse reflection to occur?
balu736 [363]

Answer:

carpet

Explanation:

Diffuse reflection is the reflection of light from a surface such that an incident ray is reflected at many angles rather than at just one angle as in the case of specular reflection.

The structure of carpet's surface is as shown. Thus it shows large amount of diffuse reflection.

4 0
3 years ago
Which has more KE, a large truck moving at 50m/s or a bicycle moving at 10m/s?
klio [65]
The truck has more KE than the bike
8 0
3 years ago
Read 2 more answers
1. How does RNA differ from DNA?
9966 [12]
The answer is c) RNA contains uracil and ribose.
7 0
3 years ago
Read 2 more answers
Explain how the embryological development of different species reveals similarities of organisms that are not evident in the ful
denpristay [2]

Answer:Comparison of the embryological development of different species also reveals similarities that show relationships not evident in the fully-formed anatomy.

Explanation:

3 0
3 years ago
Read 2 more answers
How do you think heat gets from a filament to the kernel?​
PilotLPTM [1.2K]

Answer:

Explanation:

It goes thru the fluma

8 0
3 years ago
Other questions:
  • Three blocks are arranged in a stack on a frictionless horizontal surface. The bottom block has a mass of 37.0 kg. A block of ma
    9·1 answer
  • What are the dark spots and light areas on the moon called
    5·1 answer
  • If two planets are close enough to each other do they have a greater gravitational pull then two planets that are farther away?
    9·2 answers
  • Describe the electron transfers that occur in the formation of calcium fluoride from elemental calcium and elemental fluorine.
    9·1 answer
  • You and your housemate have an argument over the cost of the electric bill. You want to turn off the outside porch light before
    6·1 answer
  • The time between a lightning flash and the following thunderclap may be used to estimate, in kilometers, how far away a storm is
    7·1 answer
  • 12. What is the speed of a wave with a wavelength of 10 meters and a frequency of 100 Hz?
    9·1 answer
  • What the heck is inertia
    11·1 answer
  • GIVING BRAINLIEST PLEASE HELP!!
    9·1 answer
  • Which one is the answer ?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!