15379 repetitive arrays of diffracting elements are uniformly
spaced over 42 mmmm. This grating is illuminated at
normal by yellow sodium vapor lamp which has a
frequency 5.09⋅10145.09·1014 Hz. Assume that the light
travels in vacuum.
15379 Repetitive Arrays Of Diffracting Elements Are Uniformly Spaced Over 42 Mmmm This Grating Is Illuminated At Norma 1 (45.32 KiB) Viewed 6 times
Problem 6 [6 points) For parts a) and b) of the below question, fill in the empty boxes with your answer (YOUR ANSWER MUST BE ONLY A NUMBER; DO NOT WRITE UNITS; DO NOT WRITE LETTERS). 15379 repetitive arrays of diffracting elements are uniformly spaced over 42 mm. This grating is illuminated at normal by yellow sodium vapor lamp which has a frequency 5.09 . 1014 Hz. Assume that the light travels in vacuum. a) [1 point] Which formula can be used to calculate the location of a bright fringe on the viewing screen? (refer to the formula sheet and select the number of the correct formula from the list) b) [5 point] At what angle will the third order maximum occur? Find your answer in degree (do not use the small angle approximation). A
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