COMEDK · Physics · 27. Dual Nature of Matter
From the figure describing photoelectric effect we may infer correctly that
- A \(\mathrm{Na}\) and \(\mathrm{Al}\) both have the same threshold frequency
- B Maximum kinetic energy for both the metals depend linearly on the frequency
- C The stopping potentials are different for \(\mathrm{Na}\) and \(\mathrm{Al}\) for the same change in frequency
- D Al is a better photo sensitive material than \(\mathrm{Na}\)
Answer & Solution
Correct Answer
(B) Maximum kinetic energy for both the metals depend linearly on the frequency
Step-by-step Solution
Detailed explanation
According to given figure, the graph between stopping potential and frequency is a straight line, therefore stopping potential \(\left(V_{0}\right)\) and hence maximum kinetic energy \(\left(K_{\max }=e V_{0}\right)\) of photoelectrons depends linearly on the frequency. Since,…
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