MCQ
Which of the following is incorrect statement regarding photon
  • Photon exerts no pressure
  • B
    Photon energy is $h v$
  • C
    Photon rest mass is zero
  • D
    None of these

Answer

Correct option: A.
Photon exerts no pressure

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A cell of e.m.f. $1.5 \mathrm{~V}$ having a finite internal resistance is connected to a load resistance of $2 \Omega$. For maximum power transfer the internal resistance of the cell should be
A rectangular coil $A B C D$ is rotated anticlockwise with a uniform angular velocity about the axis shown in diagram below. The axis of rotation of the coil as well as the magnetic field $B$ are horizontal. The induced e.m.f. in the coil would be maximum when
Image
A man stands in front of a hillock and fires a gun. He hears an echo after $1.5 \mathrm{sec}$. The distance of the hillock from the man is (velocity of sound in air is $330 \mathrm{~m} / \mathrm{s}$ )
A photon of energy $3.4 \mathrm{eV}$ is incident on a metal having work function $2 \mathrm{eV}$. The maximum K.E. of photo-electrons is equal to
Four identical rods are stretched by same force. Maximum extension is produced in
A gas mixture consists of $2$ moles of oxygen and $4$ moles argon at temperature $T$. Neglecting all vibrational modes, the total internal energy of the system is
A train has just complicated a $U$-curve in a track which is a semicircle. The engine is at the forward end of the semi circular part of the track while the last carriage is at the rear end of the semicircular track. The driver blows a whistle of frequency $200 \mathrm{~Hz}$. Velocity of sound is $340 \mathrm{~m} / \mathrm{sec}$. Then the apparent frequency as observed by a passenger in the middle of a train when the speed of the train is $30 \mathrm{~m} / \mathrm{sec}$ is
Image
The internal energy of the gas increases $\ln$
In a simple pendulum, the period of oscillation $T$ is related to length of the pendulum $l$ as
The velocity with which a projectile must be fired so that it escapes earth's gravitation does not depend on