Question

Explain the change in speed and direction of light when light travels from one medium to another medium (with suitable diagrams) ​

Answer 1

Answer:

Reflection is the phenomenon in which light rays on striking a polished surface(such as a mirror) bounce back or are sent back into the same medium.

Refraction of light is the phenomenon of bending of light or change in the direction of light, when it passes obliquely from one transparent medium to another.

Diffraction is the phenomenon of bending of light waves around the corners of an obstacle or aperture, placed in the path of light beam.

Scattering is the phenomenon by which a beam of light is redirected or deflected in many different directions when it passes through an imperfect medium due to the interaction with the particles of the medium.

Answer 2

Explanation:

Refraction is the change in direction of a wave passing from one medium to another caused by its change in speed. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media. The amount of bending depends on the indices of refraction of the two media and is described quantitatively by Snell's Law.