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

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

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?

A small bulb is placed at the bottom of a tank containing water to a depth of 80cm. What is the area of the surface of water through which light from the bulb can emerge out? Refractive index of water is 1.33. (Consider the bulb to be a point source.)

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

A light of wavelength 6,000 overset @A in air, enters a medium with refractive index 1.5.What will be frequency and wavelength of light in the medium?

Find the ratio of the powers of a glass lens in water and in air .Given,refractive index of glass =1.50,refractive index of water=1.33.

Green light of wavelegth 5,460 overset @A is incident on an air-glass interface.If the refractive index of glass is 1.5.the wavelength of light in glass would be

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.