From a metallic surface photoelectric emission is observed for frequencies 
and 
of the incident light. The maximum values of the kinetic energy of the photoelectrons emitted in the two cases are in the ratio 
. Hence the threshold frequency of the metallic surface is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
By Photoelectric equation
...(i)
...(ii)
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