Question

Change in the direction of light when it passes from one medium to another is called ............

• A. reflection
• B. refraction
• C. diffraction
• D. scattering

Answer 1

Answer: (B)

refraction

$Reflection$ 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.
Hence, the correct answer is OPTION B.