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Photoelectric current (I) vs applied voltage (V)
The graph below shows the variation of photoelectric current (I) with the applied voltage (V). What…
The graph below shows the variation of photoelectric current (I) with the applied voltage (V).
(i)[1.0]
What does $-4\text{V}$ on the graph signify?
(ii)[2.0]
Calculate the frequency of the incident ultraviolet radiation, if work function of the metal is 2.63eV.
Answer
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From ISC 2026 Improvement Physics Paper 1, question 17.