If the energy of the photon is increased by a factor of $4$, then its momentum
If the energy of the photon is increased by a factor of $4$, then its momentum
- A
Does not change
- B
Decreases by a factor of $4$
- C
Increases by a factor of $4$
- D
Decreases by a factor of $2$
Similar Questions
Write equation of mass of photon.
Write equation of mass of photon.
An electron and proton are separated by a large distance. The electron starts approaching the proton with energy $3\, {eV}$. The proton captures the electrons and forms a hydrogen atom in second excited state. The resulting photon is incident on a photosensitive metal of threshold wavelength $4000\, \mathring {{A}}$. What is the maximum kinetic energy of the emitted photoelectron ? (In ${eV}$)
An electron and proton are separated by a large distance. The electron starts approaching the proton with energy $3\, {eV}$. The proton captures the electrons and forms a hydrogen atom in second excited state. The resulting photon is incident on a photosensitive metal of threshold wavelength $4000\, \mathring {{A}}$. What is the maximum kinetic energy of the emitted photoelectron ? (In ${eV}$)
- [JEE MAIN 2021]
The momentum of a photon with energy $20\, eV$ is
The momentum of a photon with energy $20\, eV$ is
Assertion : The energy $(E)$ and momentum $(p)$ of a photon are related by $p = E/c$.
Reason : The photon behaves like a particle.
Assertion : The energy $(E)$ and momentum $(p)$ of a photon are related by $p = E/c$.
Reason : The photon behaves like a particle.
- [AIIMS 2005]
The threshold wavelength for photoelectric emission from a material is $5200\, \mathring A$. Photo-electrons will be emitted when this material is illuminated with monochromatic radiation from a
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