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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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(150)
Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The workdone in turning a magnet of magnetic moment M by an angle of 90⁰ from the magnetic
- A metal wire of circular cross-section has a resistance R₁. The wire is now stretched
- On bombarding U²³⁵ by slow neutron, 200 MeV energy is released. If the power output
- In the Bohr’s model of hydrogen atom, the ratio of the kinetic energy to the total
- A body of mass m slides down an incline and reaches the bottom
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Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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