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A laser light of wavelength 500 nm falls on a diffraction grating that has
2500 slits/cm. What is the slit spacing?

A laser light of wavelength 500 nm falls on a diffraction grating that has 2500 slitscm What is the slit spacing class=

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temdan2001

Answer: A

Explanation:

Given that the diffraction grating has 2500 slits/cm

And the wavelength of light = 500nm

The wavelength of light has no effect on the calculation of the split spacing in this question. So,

The slit spacing will be :

Slit in m ÷ number of slits

Slit spacing = 0.01/2500

Slit spacing = 4 × 10^-6 m

Therefore, option A is the correct answer.

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