Question

Given below are two statements:

Statement - I: Two photons having equal linear momenta have equal wavelengths.

Statement - II: If the wavelength of photon is decreased, then the momentum and energy of a photon will also decrease.

In the light of the above statements, choose the correct answer from the options given below.

विकल्प

• Statement-I is false but Statement-II is true.

• Both Statement-I and Statement-II are true.

• Both Statement-I and Statement-II are false.

• Statement-I is true but Statement-II is false.

Answer 1

Statement-I is true but Statement-II is false.

Explanation:

Linear momentum of photon

p = `"h"/lambda`

Energy of a photon

E = `"hc"/lambda`

The wavelengths of two photons with equal linear momenta are therefore equal, and if we reduce the wavelength, the photon's momentum and energy will increase.

Hence, statement (I) is true but statement (II) is false.