The photoeletric threshold 4v is incident on the metal is v. When light of freqency 4v is incident on the metal, the maximum kinetic energy of the emi
The photoeletric threshold 4v is incident on the metal is v. When light of freqency 4v is incident on the metal, the maximum kinetic energy of the emitted photoelectron is
A. 4hv
B. 3hv
C. 5hv
D. `(5hv)/(2)`
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Correct Answer - B
(b) : The Maximum kinetic energy of the emitted electron is given by
`K_(max)=hv-phi_(0)=h(4v)-h(v)=3hv`
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