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A source of light is placed at a distance of 50 cm from a photocell and the stopping potential is found to be V₀. If the distance between the light source and photocell is made 25 cm, the new stopping potential will be
Options
(a) 2V₀
(b) V₀ / 2
(c) V₀
(d) 4V₀
Correct Answer:
V₀
Explanation:
Since, stopping potential is independent of distance hence new stopping potential will remain unchanged i.e., new stopping potential = V₀.
Related Questions: - Two concentric coils each of radius equal to 2π cm are placed at right angles
- The rate of increase of thermo-e.m.f. with temperature at the neutral temperature
- An electric current passes through a long straight wire
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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
- Two concentric coils each of radius equal to 2π cm are placed at right angles
- The rate of increase of thermo-e.m.f. with temperature at the neutral temperature
- An electric current passes through a long straight wire
- A Carnot engine, having an efficiency of η=1/10 as heat engine, is used
- The angular velocity of a wheel increases from 100 rps to 300 rps in 10 seconds.
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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