Questions
Pick the wrong statement of the following.
a
Photoelectric current increases with increase in accelerating potential until it becomes maximum value.
b
High voltage spark passed across electrodes in a discharge tube if they are illuminated by ultraviolet light.
c
To study the effect of potential on photo-electric current, we first maintain collector at positive potential with respect to emitter.
d
The maximum negative potential given to collector for which photoelectric current becomes zero is called stopping potential.
detailed solution
Correct option is D
The stopping potential is the minimum negative potential applied to collector w.r.t emitter for which photocurrent becomes zeroTalk to our academic expert!
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