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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
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If h is Planck’s constant, the momentum of a photon of wavelength 0.01 Å is
- The number of possible natural oscilations of air column in a pipe closed
- The drift velocity of the electrons in a copper wire of length 2 m under
- Planck’s constant has same dimensions as those of
- A stone is dropped from a height h. It hits the ground with a certain momentum P. If the same stone is dropped from a height 100
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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