Dual Nature Of Radiation And Matter Ques 34
34. In photoelectric emission process from a metal of work function $1.8 $ $eV$, the kinetic energy of most energetic electrons is $0.5 $ $eV$. The corresponding stopping potential is
[2011]
(a) $1.8 $ $V$
(b) $1.2\ \text{V}$
(c) $0.5 $ $V$
(d) $2.3 $ $V$
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Answer:
Correct Answer: 34.(c)
Solution:
- (c) The stopping potential is equal to the maximum kinetic energy divided by the elementary charge.
BETA
