If the energy of a photon is $10\,eV$, then its momentum is
$5.33 \times 10^{-23}\,kg\,m / s$
$5.33 \times 10^{-25}\, kg\, m / s$
$5.33 \times 10^{-29}\, kg\, m / s$
$5.33 \times 10^{-27}\, kg\, m / s$
A photon, an electron and a uranium nucleus all have the same wavelength. The one with the most energy
A totally reflecting small plane mirror placed horizontally faces a parallel beam of light as hown in figure. The mass of mirror is $20\, gm$. Assume that there is no absorption in the lens and that $30\%$ of the light emitted by the source goes through the lens. Find the power of the source needed to support the weight of the mirror ............... $MW$ (take $g = 10\, m/s^2$) :-
If the momentum of a photon is $p$, then its frequency is
Where $m$ is the rest mass of the photon
When green light is incident on the surface of metal, it emits photo-electrons but there is no such emission with yellow colour light. Which one of the colour can produce emission of photo-electrons