The time by a photoelectron to come out after the photon strikes is approximately

The time by a photoelectron to come out after the photon strikes is approximately
  1. $10^{-1} \mathrm{~s}$
  2. $10^{-4} \mathrm{~s}$
  3. $10^{-10} \mathrm{~s}$
  4. $10^{-16} \mathrm{~s}$

Solution

$10^{-10}$ sec.

Asked in: JEE Main 2006

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