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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: - An insulated container of gas has two champers seperated by an insulating partition.
- According to photon theory of light which of the following physical quantities,
- A tangent galvanometer has a coil of 50 turns and a radius of 20 cm. The horizontal
- The de-Broglie wavelength associated with an electron accelerated by a potential
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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
- An insulated container of gas has two champers seperated by an insulating partition.
- According to photon theory of light which of the following physical quantities,
- A tangent galvanometer has a coil of 50 turns and a radius of 20 cm. The horizontal
- The de-Broglie wavelength associated with an electron accelerated by a potential
- The phase difference between the instantaneous velocity and acceleration of a particle
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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