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In photoelectric effect, the stopping potential ( V ₀ ) v / s frequency ( ) curve is plotted. ( h is the Planck's constant and ₀ is work function of metal ) (A) V ₀ v / s is linear. (B) The slope of V ₀ v / s curve = ₀ ~h (C) h constant is related to the slope of V ₀ v / s line. (D) The value of electric charge of electron is not required to determine h using the V₀ v / s curve. (E) The work function can be estimated

Options

  1. A(C) and (D) only
  2. B(A), (C) and (E) only
  3. C(A), (B) and (C) only
  4. D(D) and (E) only

Correct answer

B. (A), (C) and (E) only

Step-by-step solution

aligned & hv = + KE _ & KE _ = eV ₀ & ~V ₀= hv - e aligned (A) V ₀ v / s V is linear correct (B) Slope v ₀= ( h e ) v - e Wrong Slope h e (C) Correct (D) Incorrect (E) Correct

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