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NEETPhysicsDual Nature of Matter

What is the probability that a photoelectron is produced when a photon strikes a sodium atom, given a thin target of sodium (10–2m square, 10–3m thickness) that produces a photocurrent of 100µA when exposed to light of intensity 100W/m2 (λ = 660nm)? [Take density of Na = 0.97 kg/m3]

Options

  1. A1.2 × 10 –20
  2. B2.5 × 10 –20
  3. C8 × 10 –21
  4. D5.5 × 10 –21

Correct answer

C. 8 × 10 –21

Step-by-step solution

Correct Option is : (C) 8 × 10 –21

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