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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 the image formed by a convex mirror of focal length 30 cm is a quarter of the size
- The displacement of an object attached to a spring and executing simple harmonic
- The condition for obtaining secondary maxima in the diffraction pattern
- A sphere of 4cm radius is suspended with in a hollow sphere of 6cm radius. If the inner
- A body is moving in a vertical circle. The string must remain taut at the highest point
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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