Find how many bright fringes can be seen on the screen

Reference no: EM13523121

A diffraction grating with 610 lines per mm is illuminated with light of wavelength 520nm . A very wide viewing screen is 2.1m behind the grating.

a) What is the distance between the two m=1 fringes

b) How many bright fringes can be seen on the screen?

Reference no: EM13523121

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