Yellow light of wavelength 590 nm passes through a diffractiongrating and makes an
Chapter 17, Problem 23(choose chapter or problem)
Yellow light of wavelength 590 nm passes through a diffractiongrating and makes an interference pattern on a screen80 cm away. The first bright fringes are 1.9 cm from thecentral maximum. How many lines per mm does this gratinghave?A. 20 B. 40 C. 80 D. 200
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