Q 12-11-006NEETNEET 2025Top questionMedium
Which of the following options represent the variation of photoelectric current with property of light shown on the x-axis?
Answer: (A) A only
Concept. Photocurrent is proportional to the number of photons per second (intensity), not to frequency.
Step 1. A and B. Current against intensity is a line through the origin: A correct, B wrong.
Step 2. C and D. Above threshold the current does not rise linearly with frequency (D describes the stopping potential); C starts at zero frequency, also wrong.
Answer. A only (Option A).
Solution by Sreeraj P, M.Sc Physics