If c is the velocity of light in free space, the correct statements about photons among the following are:
(A) | The energy of a photon is E=hν. |
(B) | The velocity of a photon is c. |
(C) | The momentum of a photon, p=hνc. |
(D) | In a photon-electron collision, both total energy and total momentum are conserved. |
(E) | Photon possesses a positive electric charge. |
1. | (A), (B), (C) and (D) only |
2. | (A), (C) and (D) only |
3. | (A), (B), (D) and (E) only |
4. | (A) and (B) only |
1. | ![]() |
2. | ![]() |
3. | ![]() |
4. | ![]() |
1. | 4.4 eV | 2. | 7.103×10−15 J |
3. | 1.9 eV | 4. | 4.60 eV |
Statement I: | The de Broglie wavelength associated with a material particle depends on its charge and nature. |
Statement II: | The wave nature of particles in sub-atomic domain is significant and measurable. |
1. | Both Statement I and Statement II are correct. |
2. | Both Statement I and Statement II are incorrect. |
3. | Statement I is correct but Statement II is incorrect. |
4. | Statement I is incorrect but Statement II is correct. |
1. | Na only | 2. | Cs only |
3. | both Na and K | 4. | K only |
The maximum kinetic energy of the emitted photoelectrons in the photoelectric effect is independent of the:
1. | work function of material |
2. | intensity of incident radiation |
3. | frequency of incident radiation |
4. | wavelength of incident radiation |
1. | 32ν | 2. | 2ν |
3. | 3ν | 4. | 23ν |