Momentum of photon wavelength λ is (1993)

Correct Answer is : hλch λ/cchλ

Correct Answer is : hλch λ/cchλ

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Class 12 NEET Physics Dual Nature of Matter and Radiation

Question : 101 of 112

Marks: +1, -0

\lambda

Solution:

Concept: According to the de Broglie relation, the momentum of a photon is inversely proportional to its wavelength.

Explanation:

1. The energy (

E

) of a photon is given by:

E = \frac{hc}{\lambda}

2. For a photon, the relationship between energy and momentum (

p

) is:

E = pc ⇒ p = \frac{E}{c}

3. Substituting the value of

E

p = \frac{hc / \lambda}{c} = \frac{h}{\lambda}

Answer: The momentum of the photon is

\frac{h}{\lambda}

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