A photon in motion has a mass

  • A

    $c/h\nu $

  • B

    $h/\nu $

  • C

    $h\nu $

  • D

    $h\nu /{c^2}$

Similar Questions

Monochromatic light with a frequency well above the cutoff frequency is incident on the emitter in a photoelectric effect apparatus. The frequency of the light is then doubled while the intensity is kept constant. How does this affect the photoelectric current?

The time taken by a photoelectron to come Out after the photon strikes is approximately

  • [AIEEE 2006]

For photoelectric emission, tungsten requires light of $ 2300 \mathring A$. If light of $1800 \mathring A $ wavelength is incident then emission

A monochromatic beam of light of wavelength $400\,nm$ incident normally upon a photosensitive surface ($25\%$ reflects and rest absorbs), produces a pressure of $5 \times 10^{-7}\,Nm^{-2}$ on it. If $0.1\%$ of the incident photons produce electrons then corresponding saturation current will be..............$\mu A$ (consider area of photosensitive surface $= 5\,cm^2$)

If $c$ is the velocity of light in free space, the correct statements about photon among the following are:

$A$. The energy of a photon is $E=h v$.

$B$. The velocity of a photon is $c$.

$C$. The momentum of a photon, $p=\frac{h v}{c}$.

$D$. In a photon-electron collision, both total energy and total momentum are conserved.

$E$. Photon possesses positive charge.

Choose the correct answer from the options given below:

  • [NEET 2024]