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Red light of wavelength 625 nm is incide...

Red light of wavelength 625 nm is incident normally on a optical diffraction grating with `2xx10^(5)` lines/m. Including central principal maxima, how many maxima may be observed on a screen which is far from the grating?

A

15

B

17

C

8

D

16

Text Solution

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The correct Answer is:
B
NA
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