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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.
Related Questions: - A bucket full of water is revolved in a vertical circle of 2m
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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 bucket full of water is revolved in a vertical circle of 2m
- The resistance of an ammeter is 13Ω and its scale is graduated for a current
- At absolute temperature, the kinetic energy of the molecules
- Two wires of equal length and equal diameter and having resistivities ρ₁ and ρ₂
- In P-N junction having depletion layer of thickness 10⁻⁶ m, the potential across
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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