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MHT CET20242 May 2024Evening ShiftPhysicsDual Nature of MatterActual

The stopping potential for a photelectric emission process is 10 V . The maximum kinetic energy of the electrons ejected in the process is [Charge on electron e =1.6 10⁻¹⁹ C ]

Options

  1. A3.2 10⁻¹⁹ ~J
  2. B1.6 10⁻¹⁹ ~J
  3. C1.6 10⁻¹⁸ ~J
  4. D0 J

Correct answer

C. 1.6 10⁻¹⁸ ~J

Step-by-step solution

Maximum kinetic energy is given by, aligned & (K.E. )_ max = eV _ s & (K.E. )_ max = (1.6 10⁻¹⁹ ) 10 & ...(given, V _ s =10 ~V ) & ( K.E. )_ =1.6 10⁻¹⁸ ~J aligned

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