10.9 Light of wavelength 5000 Å falls on a plane reflecting surface. What are the wavelength and frequency of the reflected light? For what angle of incidence is the reflected ray normal to the incident ray?

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Payal Gupta | Contributor-Level 10

8 months ago

10.9 Wave length of the incident light, $?$ = 5000 $* 10^{- 10}$ m

Speed of light, c = 3 $* 10^{8}$ m/s

Frequency of the incident light, $?$ = $\frac{c}{?}$ = $\frac{3 * 10^{8}}{5000 * 10^{- 10}}$ Hz= 6 $* 10^{14}$ Hz

The wavelength and frequency of incident ray will be same as of reflected ray. So the wavelength of the reflected ray will be 5000 Å and the frequency will be 6 $* 10^{14}$ Hz

When ref

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Physics Ncert Solutions Class 12th 2023

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