4 years ago

Which is the destructive interference formula for diffraction grating problems?

1 answer:

meriva4 years ago

5 0

The formula for the brighter patches resulting from constructive interference and darker patches resulting from destructive interference in a diffraction grating is:

dsin(θ) = nλ

Here, d is the spacing between the grating, θ is the angle of light, n is the fringe order and λ is the wavelength. N has integer values only.

Destructive interference occurs between the fringes, so the formula for destructive interference becomes:

dsin(θ) = (n+1/2)λ, where n is again an integer.

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If triangle ABC is similar to triangle XYZ, find BC is XY=8, YZ=5, and AB=32

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Lets BC =x

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8x =32 * 5
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answer
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