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The threshold wavelength for photoelectric emission from a material is 4800 Å. Photoelectrons will be emitted from the material, when it is illuminated with light from a
Options
(a) 40 W blue lamp
(b) 40 W green lamp
(c) 100 W red lamp
(d) 100 W yellow lamp
Correct Answer:
40 W blue lamp
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
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The Boolean expression P+ P ̅ Q, where P and Q are the inputs of the logic
- A coil of resistance and 1.0 H inductance is connected to an a.c. source of frequency
- In an interference experiment, third bright fringe is obtained at a point
- Two charged particles have charges and masses in the ratio 2:3 and 1:4 respectively.
- Eight drops of a liquid of density ρ and each of radius a are falling through air
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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