A and B are two metals with threshold frequencies 1.8 10^ 14 ~Hz and 2.2 10^ 14 ~Hz . Two…
Physics · NEET · NTA Exams — Dual Nature of Matter and Radiation
A and B are two metals with threshold frequencies \(1.8 \times 10^{14} \mathrm{~Hz} \text { and } 2.2 \times 10^{14} \mathrm{~Hz} .\) Two identical photons of energy 0.825 eV each, are incident on them. Then photo-electrons are emitted by
(Take, h = 6.6 x 10-34 J-s)
- B alone
- A alone
- neither A nor B
- both A and B
Answer
(C) neither A nor B
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