The work functions of metals 
and 
are in the ratio 
. If light of frequencies f and 2f are incident on the surfaces of 
and 
respectively, the ratio of the maximum kinetic energies of photoelectrons emitted is ( 
is greater than threshold frequency of A, 2f is greater than threshold frequency of 
)
A
1 : 1
B
C
1 : 3
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Given 
from Eq. (1) and (2)
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