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Red light of wavelength 625 nm is incident normally on an optical diffraction grating with 2 **x10^5 lines/m. Including central principal maxima, how many maxima may be observed on a screen which is far from the grating?

Red light of wavelength 625 nm is incident normally on an optical diffraction grating with 2 **x10^5 lines/m. Including central principal maxima, how many maxima may be observed on a screen which is far from the grating?

Grade:12

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
2 years ago
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Vikas TU
14149 Points
2 years ago
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Dear student 
Please refer the clear image , 
The image above does not looks good , it is blurr.
Hope for the best 
Good Luck 
Cheers 

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