What is called as photon ? 

Similar Questions

If we express the energy of a photon in $KeV$ and the wavelength in angstroms, then energy of a photon can be calculated from the relation

Photo cell is a device to

According to photon theory of light which of the following physical quantities associated with a photon do not/does not change as it collides with an electron in vacuum

Two sources of light emit with a power of $200 \mathrm{~W}$. The ratio of number of photons of visible light emitted by each source having wavelengths $300\  \mathrm{nm}$ and $500 \mathrm{~nm}$ respectively, will be :

  • [JEE MAIN 2024]

In photo electric effect

$A.$ The photocurrent is proportional to the intensity of the incident radiation.

$B.$ Maximum Kinetic energy with which photoelectrons are emitted depends on the intensity of incident light.

$C.$ Max. $K.E$ with which photoelectrons are emitted depends on the frequency of incident light.

$D.$ The emission of photoelectrons require a minimum threshold intensity of incident radiation.

$E.$ Max. K.E of the photoelectrons is independent of the frequency of the incident light.

Choose the correct answer from the options given below:

  • [JEE MAIN 2023]