Yellow light of wavelength 600 nm is incident on aboundary separating

1.	Yellow light of wavelength 600 nm is incident on aboundary separating air and glass. Find the speed,wavelength and frequency of (i) reflected light and(ii) refracted light. The refractive index of glass foryellow light is 1.5
Answer» (i) For reflected light, the light is in the same medium of incidence so the speed is 3 x 10^8ms-2itself. Wavelength also remains the same, that is 589 nm Frequency = Velocity/Wavelength = 3 x 10^8/ 589 x 10^-9= 5.093 x 10^14Hz (ii) Speed of light in glass = Speed of light in air / refractive index of glass = 3 x 10^8/ 1.5 = 2 x 10^8ms^-2 Wavelength of light in glass = Wavelength of light in air / refractive index of glass = 589 / 1.5 = 392.67nm Frequency of light remains constant so it is 5.093 x 10^14Hz itself.

Yellow light of wavelength 600 nm is incident on aboundary separating air and glass. Find the speed,wavelength and frequency of (i) reflected light and(ii) refracted light. The refractive index of glass foryellow light is 1.5

Answer»

(i) For reflected light, the light is in the same medium of incidence so the speed is 3 x 10^8ms-2itself.

Wavelength also remains the same, that is 589 nm

Frequency = Velocity/Wavelength = 3 x 10^8/ 589 x 10^-9= 5.093 x 10^14Hz

(ii) Speed of light in glass = Speed of light in air / refractive index of glass = 3 x 10^8/ 1.5 = 2 x 10^8ms^-2

Wavelength of light in glass = Wavelength of light in air / refractive index of glass = 589 / 1.5 = 392.67nm

Frequency of light remains constant so it is 5.093 x 10^14Hz itself.

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