Light of frequency 
is incident on a certain photoelectric substance with threshold frequency 
. The work function for the substance is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
The minimum energy required for the emission of photoelectrons from the surface of metal is known as work function of the metal, and the frequency corresponding to work function is known as threshold frequency.
Work function 
where 
is threshold frequency.
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