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Question

The curves $$(a),(b)\ (c)$$ and $$(d)$$ show the variation between the applied potential difference $$(V)$$ and the photoelectric current $$(i)$$, at two different intensities of light $$i_1>i_2$$. In which figure is the correct variation shown

A
B
C
D
Solution
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Correct option is B.
intensities $$I_1, I_2 \ and \ I_1 > I_2$$
as current ∝ intensity hence $$i ∝ I $$
$$ i_1 > i_2 $$ stopping potential Vo does not depend on velocity hence Vo is same.
∴ curve is (B)

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