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A and B are two metals with threshold frequencies 1.8 x 10¹⁴ Hz and 2.2 x 10¹⁴ Hz. Two identical photons of energy 0.825 eV each are incident on them. Then photoelectrons are emitted in (Take h=6.6 x 10³⁴ Js)
Options
(a) B alone
(b) A alone
(c) neither A nor B
(d) both A and B
Correct Answer:
A alone
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A transformer is used to light a 100 W and 110 V lamp from a 220 V mains.
- Two metal spheres of radii 0.01m and 0.02m are given a charge of 15mC and 45mC
- You are marooned on a frictionless horizontal plane and cannot exert any horizontal
- One way in which the operation of a n-p-n transistor differs from that of a p-n-p
- The electron of a hydrogen atom revolves round the proton in a circular
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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