Physics - Semiconductors Question with Solution | TestHub
PhysicsSemiconductorsPN junctionMedium2 minPYQ_2010
PhysicsMediumsingle choice
The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is put on and a saturation photo-current is recorded. An electric field is switched on which has a vertically downward direction, then
Options:
Answer:
B
Solution:
In electric field photoelectron will experience force and accelerate opposite tothe field soits increases (i.e., stopping potential will increase), no change in photoelectric current, and threshold wavelength.
Stream:VITEEESubject:PhysicsTopic:SemiconductorsSubtopic:PN junction
⏱ 2mℹ️ Source: PYQ_2010
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