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Reported Question / Answer
Q.) The wavelength of a incident light when it is incident normally on a diffraction grating having 3000 lines per centimeter angular separation is 10° is
1)
650 mn
2)
500 nm
3)
600 nm
4)
580 nm
5)
NULL
Answer :
4
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Human Verification : Answer 2 + 3 = ?
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