MCQ
Kinetic energy of emitted cathode rays is dependent on
- AOnly voltage
- BOnly work function
- ✓Both $(a)$ and $(b)$
- DIt does not depend upon any physical quantity
✓
Answer
Correct option: C.
Both $(a)$ and $(b)$
c
(c)Higher the voltage, higher is the $KE$. Higher the work function, smaller is the $KE$.
(c)Higher the voltage, higher is the $KE$. Higher the work function, smaller is the $KE$.
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