When monochromatic light is incident on a surface separating two media, the reflected and refracted light both have the same frequency as the incident frequency. Explain, why.

A ray of light is incident on a medium at polarising angle .What is the angle betweeen the relfected and refracted rays?

When light undergoes refraction, what happens to its frequency?

Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed of reflected?

A ray o light is incident on the surface of separation of a medium with the velocity of igth at an angle 45^@ and is refracted in the medium at an angle 30^@ .Velocty of light in the medium will be:(Veloctiy of light= 3xx10^8 m s^(-1) ).

Two glass pates P and Q are held close and parallel to each other.A narrow beam of onochromatic light AB of intensity I is incident on plnate P ,which is partially reflected and transmitted by it. The transmitted beam DE is reflected by plate Q,which is subsequently again reflected and transmitted by the plate P as shown in Fig.6.14. If durign a reflection,each glass plate reflects one-fourth of the light incident on it,then find the intesnstities of maxima and minima in the interference pattern produced by the two beams BC and IJ.

Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed of- refracted light. Refractive index of water is 1.33

When monochromatic light travels from one medium to another, its wavelength changes but its frequency remains the same. Why?

A ray of light is incident on the surface of a glass plate of refractive index 1.536 at the polarising angle.Calculate the angle of refraction.