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Sodium and copper have work function 2.3 eV and 4.5 eV respectively. The ratio of their threshold wavelengths is nearest to
Options
(a) 1 : 2
(b) 4 : 1
(c) 2 : 1
(d) 1 : 4
Correct Answer:
2 : 1
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - Which of the following physical quantities has neither dimensions nor unit
- A resistor 30Ω, inductor of reactance 10 Ω and capacitor of reactance 10 Ω
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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
- Which of the following physical quantities has neither dimensions nor unit
- A resistor 30Ω, inductor of reactance 10 Ω and capacitor of reactance 10 Ω
- A charge Q is enclosed by a Gaussian spherical surface of radius R
- A block of mass 5 kg is moving horizontally at a speed of 1.5 m/s. A perpendicular force
- A piece of iron is heated in a flame. It first comes dull red then becomes reddish
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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