Question

1) Give scientific reasons. (Any two)
1) A pencil dipped in water obliquely appears bent at the surface of water.​

Answer 1

Answer:

Solution : (1) When a pencil is partly immersed in water and held in a slanting position, the rays of light coming from the immersed part of the pencil emerge from water (a denser medium) and enter air (a rarer medium). ... Hence, a pencil dipped obliquely in water appears bent at the surface of the water.

Answer 2

Explanation:

The pencil appears to be bent when it is kept in a glass tumbler with water due to refraction of light. The refraction of light occurs when the speed of light changes when it travels from one medium to another. But when the pencil is dipped in kerosene or in oil, the bending is not the same because they are optically denser than water.

please mark me as a brain list