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Photoelectric emision occurs only when the incident light has more than a certain minimum
Options
(a) power
(b) wavelength
(c) intensity
(d) frequency
Correct Answer:
frequency
Explanation:
For occurence of photoelectric effect, the incident light should have frequency more than a certain minimum which is called the threshold frequency (v₀).
We have, 1/2 mv² = hv – hv₀
for photoelecric effect emission v > v₀ where v is the frequency of the incident light.
Related Questions: - A body of mass 1.0 kg is falling with an acceleration of 10 ms⁻².
- Minority carriers in a p-type semiconductor are
- The mean free path of molecules of a gas,(radius ‘r’) is inversely proportional to
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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 body of mass 1.0 kg is falling with an acceleration of 10 ms⁻².
- Minority carriers in a p-type semiconductor are
- The mean free path of molecules of a gas,(radius ‘r’) is inversely proportional to
- The Davisson- Germer experiment is the direct evidence of
- For the normal eye, the cornea of eye provides a converging power of 40D
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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