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NEETPhysicsDual Nature of Matter

What is the threshold frequency for photoemission of electrons when light of frequency 7.21 × 10 14 Hz is incident on a metal surface, resulting in electrons being ejected with a maximum speed of 6.0 × 10 5 m/s?

Options

  1. A7.21 × 10 14 Hz
  2. B6.0 × 10 5 Hz
  3. C1.21 × 10 9 Hz
  4. D4.73 × 10 14 Hz

Correct answer

D. 4.73 × 10 14 Hz

Step-by-step solution

Correct Option is : (D) 4.73 × 10 14 Hz

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