The energy of a photon of wavelength $\lambda $ is given by
The energy of a photon of wavelength $\lambda $ is given by
- [AIPMT 1988]
- A
$h\lambda $
- B
$ch\lambda $
- C
$\lambda /hc$
- D
$hc/\lambda $
Similar Questions
The momentum of a photon with energy $20\, eV$ is
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By suitable example show that particle or wave nature depend on type of experiment.
By suitable example show that particle or wave nature depend on type of experiment.
A $200\, W$ sodium street lamp emits yellow light of wavelength $0.6\, \mu m$. Assuming it to be $25\%$ efficient in converting electrical energy to light, the number of photon of yellow light it emits per second is
A $200\, W$ sodium street lamp emits yellow light of wavelength $0.6\, \mu m$. Assuming it to be $25\%$ efficient in converting electrical energy to light, the number of photon of yellow light it emits per second is
- [AIPMT 2012]
Photon and electron are given same energy $({10^{ - 20}}J)$. Wavelength associated with photon and electron are ${\lambda _{Ph}}$ and ${\lambda _{el}}$ then correct statement will be
Photon and electron are given same energy $({10^{ - 20}}J)$. Wavelength associated with photon and electron are ${\lambda _{Ph}}$ and ${\lambda _{el}}$ then correct statement will be
In photoelectric effect, the K.E. of electrons emitted from the metal surface depends upon
In photoelectric effect, the K.E. of electrons emitted from the metal surface depends upon