Light is incident normally on a grating of width 5 X 10-3 m with 2500 – McqOptions

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1.	Light is incident normally on a grating of width 5 X 10^-3 m with 2500 lines. What is the resolving power of the grating in the second order spectrum?
A.	2500
B.	5000
C.	1250
D.	500
Answer» C. 1250

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