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NEET2008PhysicsSemiconductorsActual

A p-n photodiode is made of a material with a band gap of 2.0 eV . The minimum frequency of the radiation that can be absorbed by the material is nearly

Options

  1. A20 10¹⁴ ~Hz
  2. B10 10¹⁴ ~Hz
  3. C5 10¹⁴ ~Hz
  4. D1 10¹⁴ ~Hz

Correct answer

C. 5 10¹⁴ ~Hz

Step-by-step solution

v= E h =5 10¹⁴ ~Hz

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