Find the amplitude of the elecric field in a parallel beam of light of intensity `8 W m^(-2)`.

Three polaroids are placed insuch a manner that the third polaroid is crossed with the first.When a beam of unpolarised light of intenstiy 24 W m^(-2) falls on the first polaroid,the intensity of light reduces to 3W m^(-2) on emerging fromo the thrid polariod.Find the angle between the trnasmission axes of the second and third polaroid.

Find the Electric field due to two infinite plane parallel sheet of charge.

In an electromagnetic wave,the amplitude of oscillating magnetic field is 2 xx 10^(-7) T. What is the amplitude of oscillating electric field in the wave?Given c=3 xx 10^8 m s^(-1) .

A glass prism of angle 72^@ and refractive index 1.66 is immersed in water of refractive index 1.33Find teh angle of minimum deviation for a parallel beam of light passingh through the prism.

Define intensity of electric field at a point at what points is the electric dipole field intensity parallel to the line joining the charges?

In the wave picture of light, intensity of light is determined by square of the amplitude of wave. What determines the intensity of light in the photon picture of light.

In the figure VSAQ 63 below the path of a parallel beam of light passing through a convex lens of refractive index n_g kept in a medium of refractive index n_m is shown. Is n_g=n_m n_g>n_m n_g lt n_m

An unpolarised beam of light of intensity I_0 is incident on a combination of two polaroids.Find the net intesity of light of intensity transmitted by the combinatin,when the pass axis of the two polaroids are inclined to each other at an angle of 60^@ .

At what points is the electric dipole field intensity parallel to the line joining the charges?