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Dual Nature of Radiation and Matter question

2005 · Q140
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Dual Nature of Radiation and Matter question

2005 · Q140

NEETPhysicsDual Nature of Radiation and MatterMCQ+4 / −1
A photosensitive metallic surface has work function, hυ\upsilonυ0. If photons of energy 2hυ02h{\upsilon _0}2hυ0​ fall on this surface, the electrons come out with a maximum velocity of 4 ×\times× 106 m/s. When the photon energy is increased to 5 hυ\upsilonυ0, then maximum velocity of photoelectrons will be
  1. A
    2 ×\times× 107 m/s
  2. B
    2 ×\times× 106 m/s
  3. C
    8 ×\times× 106 m/s
  4. D
    8 ×\times× 105 m/s
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