What is the distance between the two fringes

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Reference no: EM13991110

A laser beam of wavelength 680 nm shines through a diffraction grating that has 750 lines/mm and observed on a screen 1.4 m behind the grating.

How many bright fringes can be observed on a screen?

What is the distance between the two m=1 fringes?

Reference no: EM13991110

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