Physics · 2026
JEE Main · 22 January 2026, Shift 2 · Q43
Light is incident on a metallic plate having work function 110 × 10^-20 J. If the produced photoelectrons have zero kinetic energy then the angular…
Light is incident on a metallic plate having work function $\displaystyle 110 \times 10^{-20} \mathrm{~J}$. If the produced photoelectrons have zero kinetic energy then the angular frequency of the incident light is $\displaystyle \_\_\_\_$ rad/s. $\displaystyle \left(\mathrm{h}=6.63 \times 10^{-34} \mathrm{~J} . \mathrm{s}\right)$.
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 1.04 \times 10^{16}$
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.