Light of wavelength `6000 Å` falls on a plane reflecting surface. The reflected wavelength is.

Light of wavelength 6000Å falls on a plane reflecting surface. The reflected wavelength is

Light of wavelength 6000 Å falls on a plane reflecting surface. What are the wavelength and frequency of reflected light. If angle between incident ray and reflected ray is 60^@ , what is the angle of incidence ?

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?

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?