For a photosensitive material when it is exposed to an electromagnetic radiation of frequency more than its threshold value then the wrong statement is
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a
All photoelectrons come out with same velocity.
b
If frequency increases velocity of photoelectrons increases.
c
If intensity increases the photoelectric current increases.
d
Stopping potential vs frequency graph is a straight line.
answer is A.
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Detailed Solution
According to Einstein photoelectric equation hν=hν0+12mvmax2 so electrons can have velocity any value between 0 to vmax.