Diffraction grating is better than two slits set up for measuring the wavelength of a monochromatic light. Explain.
Ans: In diffraction grating, the spectrum of the
light obtained is very sharp and clear than that of two slit. This helps
for precise measurement of wavelength of the monochromatic light. So,
diffraction grating is better than two slits set up for measuring the
wavelength of monochromatic light.
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