Blue light of wavelength 450 nm passes through an interference grating with a slit spacing of 0.001

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Blue light of wavelength 450 nm passes through an interference grating with a slit spacing of 0.001 mm and makes an interference pattern on the wall. How many bright fringes will be seen? 

A. 1 

B. 3 

C. 5 

D. 7

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College Physics A Strategic Approach

ISBN: 9780321595492

2nd Edition

Authors: Randall D. Knight, Brian Jones, Stuart Field

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