A pencil appears to be bent when partially immersed in a beaker of water due to ....................(reflection/refraction) of light.

Refraction & Reflection of Light

When the water in a beaker is heated the warm water

The ray of light after changing its direction in the second medium after refraction is called ................... (reflected ray/refracted ray).

Assertion : The rainbow is an example of the dispersion of sunlight by the water drops in the atmosphere. Reason : No reflection or refraction of light is involved in the formation of rainbow.

A pencil when dipped in water in a glass tumbler appears to be bent at the interface of air and water. Will the pencil appear to be bent to the same extent, if instead of water we use liquids like, kerosene or turpentine. Support your answer with reason.

A beam of light is partially reflected and partially refracted from a surface. The angle between reflected and refracted light ray is 90^(@) . If the angle of refraction is 30^(@) , the angle of incidence is

When light is refracted into a medium

When light is refracted into a medium

A pencil held obliquely in water appears bent and longer. ____

Assertion Sun appears red during sunrise and sunset due to the phenomenon of refraction. Reason In refraction of light frequency of light remains unchanged.