CBSE 2026 · Region 3 · Set 2 · Q11 · 1 mark
The velocity of the photoelectrons emitted from a surface depends upon the :(A)Wavelength of incident radiation only(B)Intensity of incident radiation only(C)Work function of the surface only(D)Both wavelength of the incident radiation and work function of the surface
The velocity of the photoelectrons emitted from a surface depends upon the :
(A)
Wavelength of incident radiation only
(B)
Intensity of incident radiation only
(C)
Work function of the surface only
(D)
Both wavelength of the incident radiation and work function of the surface
Official answer
From CBSE’s own marking scheme for this paper.
(D)
Dual Nature of Radiation and MatterEinstein’s Photoelectric Equation: Energy Quantum of RadiationUnderstandmcqeasy
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CBSE Class 12 Physics past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.