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Q.

If the frequency of incident light is tripled, the stopping potential will

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a

be tripled

b

become one third

c

become more than triple

d

become less than triple but more than double

answer is C.

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Detailed Solution

eV= h(ν - ν0)When frequency of incident light in tripled,eV'= h(3ν - ν0)= h(ν- ν0) + 2hν= eV + 2hνSince hν > eVThus, V'> V
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