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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
- Number of electrons in one mC charge, given e=1.6×10⁻¹⁹ C, will be
- A tangent galvanometer has a coil of 50 turns and a radius of 20 cm. The horizontal
- If the image formed by a convex mirror of focal length 30 cm is a quarter of the size
- Length of a conductor is 50 cm radius of cross section 0.1 cm and resistivity
- At place on earth, the vertical component of earth’s magnetic field is √3 times
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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