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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.
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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
- During mean life of a radioactive element, the fraction that disintegrates is
- If a given volume of water in a 220V heater is boiled in 5 min, then same volume
- The electric field in a certain region is acting radially outward and is given by E=Ar.
- The work function for metals A,B abd C are respectively 1.92 eV,2.0 eV and 5 eV.
- A dip needle vibrates in a vertical plane perpendicular to magnetic meridian. The time
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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