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Diffraction grating produces its third-order bright band at an angle of 79.4 ∘ for light of wavelength 791 nm . Part A Find...

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Physics


Diffraction grating produces its third-order brightband at an angle of 79.4 ∘ for light of wavelength791 nm .

Part A

Find the number of slits per centimeter for thegrating.

n = 

Part B

Find the angular location of the first-order brightband.

θ1 = 

Part C

Find the angular location of the second-order brightband.

θ2 = 

Part D

Will there be a fourth-order bright band?

Answer & Explanation Solved by verified expert
4.0 Ratings (521 Votes)
The basic equation for calculating the diffraction patterncaused due to the grating is given bywhere d distance between the slits m order of the band wavelength and is    See Answer
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