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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 stone falls freely under gravity. It covers distances h1, h2 and h3 in the first 5 secs
- Which one of the following is not due to total internal reflection?
- A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof
- A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed of 2.00
- Two cells when connected in series are balanced on 8m on a potentiometer.
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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