Light Test - 1...

Read the following statements and choose the correct option accordingly:

Statement A: Reflection from the water surface is diffused reflection.
Statement B: In diffused reflection, a parallel beam, after reflection, does not remain parallel.

A beam of light is incident at an angle of 30° on a plane mirror. The mirror is then rotated by an angle of 20°.

By what angle will the reflected beam rotate?

An object is moving towards a plane mirror with a velocity of 2 m/s. At what speed does the image approach the object?

Read the following statements and choose the correct option accordingly:

Statement A: Refractive index determines the optical density of a medium.
Statement B: Refractive index is independent of the wavelength of the light.

Read the following statements and choose the correct option accordingly.

Statement A: During the propagation of light from a denser medium to a rarer medium, light bends away from the normal.
Statement B: During refraction, there is no change in the frequency of light.