Show that the radiations pressure exerted by an EM wave of intensity I on a surface kept in vacuum is `I//c`.

Calculate the pressure exerted by two moles of gas at 27^@C in a 1 litre flask.

Why is the amount of the momentum transferred by the e.m. waves incident on the surface so small?

A metal cuboid of mass 'M' kg rests on a table with surface are of 40cm^2 in contact with the table. The pressure exerted by the cuboid on the table surface is 10000 Pa. Value of m is (given that g = 10ms^-2)

Show that the energy density of em radiation is epsilon_0E^2 . Hence, find the intensity of radiations?

An EM wave of intensity 'I' falls on a surface kept in vacuum and exerts radiation pressure p on it. Which of the following are true?

A bubble of gas released at the bottom of a lake increases to four times its original volume when it reaches the surface. Assuming that atmospheric pressure is equivalent to the pressure exerted by a column of water 10 m high, what is the depth of the lake?

Show that the ratio of electric and magnetic field is equal to velocity of light(i.e. e.m. wave)

Find the maximum intensity in case of interference of n identical waves each of intensity I_0 ,if the interference is from coherent sources

Find the maximum intensity in case of interference of n identical waves each of intensity I_0 ,if the interference is incoherent.