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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
- A car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless
- In an L-C-R series resonant circuit, the capacitance is changed from C to 4C.
- A person wants a real image of his own, 3 times enlarged. Where should he stand
- In the given (V – T) diagram, what is the relation between pressure P₁ and P₂?
- Amout of heat required to raise the temperature of a body through 1 K is called its
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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