Prove the laws of reflection by using Huygens' principle.

State the laws of reflection of light.

State law of reflection of light.

Define a wavefront. Using Huygens' principle verify the laws of reflection at a plane surface.

The law of reflection of light are valid for-

Prove the following by using the principle of mathematical induction for all n in N : (2n+7)<(n+3)^2 .

Prove the following by using the principle of mathematical induction for all n in N : 1^3+2^3+3^3+...........+n^3=((n(n+1))/2)^2

Differentiate the function with respect to x using the first principle : tanx

State that laws of reflection of light .State the laws of refraction of light.

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 Huygen's principle leads us to conclude that as it travels the light beam