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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 spring gun of spring constant 90 N/cm is compressed 12 cm by a ball of mass
- A coil of resistance 10 Ω and an inductance 5 H is connected to a 100 volt
- If 10000 V is applied across an X-ray tube, what will be the ratio of de-Broglie
- The magnetic field at the centre of a circular coil carrying current I ampere is B.
- A Zenor diode has a contact potential of 1 V in the absence of biasing. It undergoes
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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