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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
- When we hear a sound, we can identify its source from
- When the energy of the incident radiation is increased by 20%,
- The energy released in the fission of 1 kg of ₉₂U²³⁵ is (energy per fission = 200 MeV)
- The charge flowing through a resistance R varies with time t as Q=at-bt²,
- Two blocks of masses m₁=4 kg and m₂= 2kg are connected to the ends of a string
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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