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When point source is kept at 20 cm dista...

When point source is kept at 20 cm distance from photcell ,stopping voltage obtained is `V_(0)` When source distance is changed to 1m, stopping potential will be ……..

A

`2V_0`

B

`V_0`

C

`(V_0)/(2)`

D

`(V_0)/(4)`

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