Question

The grating used to observe, diffraction of visible light can have approximately.
Select one:
a. 300 lines per cm
b. 3000 lines per cm,
c. 30 lines per cm
d. 15000 lines per cm

Answer 1

a. as visible light has wave length 300- 700 nm hope it helps mark me brainlest

Answer 2

Answer:

The grating used to observe, diffraction of visible light can have approximately 15000 lines per cm

Explanation:

• Diffraction occurs when the size of the obstruction is of the order of the wavelength owing to the wave nature of light.

• A diffraction grating is a kind of special optical device that separates (disperses) light that has many distinct wavelengths e.g, white light into light components based on wavelength.

• A grating with a large number of equally spaced parallel slits is the most basic variety.

• When white light enters the grating, the light components diffract at angles given by the wavelengths.

• Selecting diffracted light allows you to pick the needed light component.

• In short, light is reinforced when the optical path difference between parallel beams entering nearby slits is a multiple of the wavelength.

• To generate "diffracted light," the light from all of the holes is strengthened in the same way.

Therefore, we may say that due to the fact that light is a wave, diffraction occurs when an obstruction is the size of a wavelength and due to that The grating used to observe, diffraction of visible light can have approximately 15000 lines per cm.

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