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adelina 88 [10]
3 years ago
9

Light passes through a pair of narrow slits with a 0.67-mm separation. It is found that the fourth bright fringe makes an angle

of 0.19° with the normal. What is the light’s wavelength in nanometers? Answer in nanometers

Physics
1 answer:
babunello [35]3 years ago
7 0

Answer:

The wavelength of the light is 555 nm.

Explanation:

according to Bragg's law..

n×λ = d×sin(θ)

n is the fringe number

λ is the wavelength of the light

d is the slit separation

θ is the angle the light makes with the normal at the fringe.

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