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A photon having 8 eV energy is incident ...

A photon having 8 eV energy is incident on metal suraface with threshold frequency of `1.6xx10^(15)` Hz .Maximum kinetic energy of photoelectron emitted will be…….
`h=6.6xx10^(-34)JS,c=3xx10^(8)m//s`
`eV=1.6xx10^(-19)JS`

A

`4.2 eV `

B

`2.8 eV`

C

`1.4 eV `

D

`0.8 eV `

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