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Q. No.In photoelectric effect, the kinetic energy of photoelectrons increases linearly with the:
1. Wavelength of incident light
2. Frequency of incident light
3. Velocity of incident light
4. Atomic mass of an element
Subtopic: Photo Electric Effect |
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Level 1: 80%+
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A photon of wavelength 4 × 10–7 m strikes a metal surface, the work function of the metal being 2.13 eV. The kinetic energy of emission would be:
| 1. | 0.97 eV | 2. | 97 eV |
| 3. | 4.97 × eV | 4. | 5.84 × 105 eV |
Subtopic: Photo Electric Effect |
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Level 2: 60%+
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When a photon with a wavelength of 150 pm strikes an atom, one of its inner bound electrons is ejected at a velocity of 1.5 × 107 m s–1 . The energy with which it is bound to the nucleus would be:
1. 32.22 × 10–16 J
2. 12.22 × 10–16 J
3. 22.27 × 10–16 J
4. 31.22 × 10–16 J
Subtopic: Photo Electric Effect |
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Level 2: 60%+
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