Write Huygen's principle.

Explain the reflection of a plane wave using Huygen's principle.

Explain plane wave refraction from denser to rarer medium using Huygen's principle.

Write the limitation of Huygen's principle.

Derive the laws of refraction from the concept (Huygen's principle) of the wavefront.

On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally, the Huygens. principle leads us to conclude that as it travels, the light beam 1......

Limitations of Huygen's principle is explained by.....

Is Huygen's principle valid for longitudunal sound waves ?

You have learnt in the text how Huygens’ principle leads to the laws of reflection and refraction. Use the same principle to deduce directly that a point object placed in front of a plane mirror produces a virtual image whose distance from the mirror is equal to the object distance from the mirror