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Manipal MET2024PhysicsDual Nature of Matter

If the frequency of incident photon on metal surface is doubled, then stopping potential will become

Options

  1. Adoubled
  2. Bless than double
  3. Cmore than double
  4. Dless than existing value

Correct answer

C. more than double

Step-by-step solution

According to Einstein's photoelectric equation, h f=W₀+e V₀...(i) If frequency is doubled, then aligned h(2 f) & =W₀+e V₀^ 2 h f & =W₀+e V₀^ ...(ii) aligned Substituting hf from Eq. (i) in Eq. (ii), we have, or V₀^ =2 V₀+ W₀ e or V₀^ 2 V₀

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