Momentum of a photon of wavelength - is-

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Standard XII

Physics

Matter Waves

Momentum of a...

Question

Momentum of a photon of wavelength $λ$ is:

h / λ

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h λ / c^{2}

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h λ / c

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Solution

The correct option is A $h / λ$
Momentum of a photon of wavelength $λ$ is:
The energy of light $E = \frac{h c}{λ}$ ....(1)
The energy of light $E = m c^{2}$ ....(2)
(1) $=$ (2)
$\frac{h c}{λ} = m c^{2}$
$\frac{h}{λ} = m c =$ Momentum.

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Similar questions

Q. Energy of photon is

E = h f

and its momentum is

P = \frac{h}{λ}

, where

λ

is the wavelength of photon with this assumption speed of light wabe is ______

Q. Light in certain cases may be considered as a stream of particles called photons. Each photon has a linear momentum

\frac{h}{λ} .

where

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is the Planck's constant and

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is the wavelength of the light.A beam of light of wavelength

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is incident on a plane mirror at an angle of incidence

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. Calculate the change in linear momentum of photon as the beam is reflected by the mirror.

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respectively. The wavelength

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Q. We can say that the energy of frequency

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Light in certain cases may be considered as a stream of particles called "photons". Each photon has a linear momentum $\frac{h}{λ}$ where h is the Planck's constant and $λ$ is the wavelength of the light. A beam of light of wavelength $λ$ is incident on a plane mirror at an angle of incidence $θ$ . Calculate the change in the linear momentum of a photon as the beam is reflected by the mirror.

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Momentum of a photon of wavelength λ is:

The correct option is A h/λMomentum of a photon of wavelength λ is:The energy of light E=hcλ....(1)The energy of light E=mc2 ....(2)(1) = (2)hcλ=mc2hλ=mc= Momentum.

Momentum of a photon of wavelength $λ$ is:

The correct option is A $h / λ$
Momentum of a photon of wavelength $λ$ is:
The energy of light $E = \frac{h c}{λ}$ ....(1)
The energy of light $E = m c^{2}$ ....(2)
(1) $=$ (2)
$\frac{h c}{λ} = m c^{2}$
$\frac{h}{λ} = m c =$ Momentum.