3. 650 nm yellow light is incident on a diffraction grating which has 150 lines/cm. What...

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Question

$3. 650 nm yellow light is incident on a diffraction grating which has 150 lines/cm. What is the spacing between the bright fr$

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Answer 1

Answer #1

The spacing between fringes is given by:

y = D*lambda/d where D is screen distance, d is slit spacing, lambda is wavelength

= 4.9*650e-9/[1/(150*100)]

= 0.0478 m answer

Answer 2

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