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A Diffraction Grating Has 5000 Lines/cm with White Light (400-650nm) $\circ$

Question 33

Multiple Choice

A diffraction grating has 5000 lines/cm with white light (400-650nm) .What wavelength(s) will experience constructive interference at 45^$\circ$?

A) 442 nm
B) 471 nm
C) 505 nm
D) 589 nm
E) None of these will be visible.

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