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PhysicsJEE Main 4 Apr 2026, Shift 1·Q7·MCQ·Easy–moderate

Dual Nature of Radiation and Matter · Photoelectric effect

The graph shows variation of stopping potential VoV_o with the frequency ν\nu of the incident radiation for three photosensitive metals X1X_1, X2X_2 and X3X_3. Which metal will give out electrons with greater kinetic energy, for the same wavelength of incident radiation?
  1. (1)X1X_1
  2. (2)X2X_2
  3. (3)X3X_3
  4. (4)All the metals will give out photo electrons with same kinetic energies.

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