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A radiation of 3300 Å falls on a metal t...

A radiation of 3300 `Å` falls on a metal to eject electrons with a maximum velocity of `0.4 xx10^6 m//s,` the value of the work function of metal is nearly
`(h=6.6 xx10^-34J-s,m_e =9.1 xx10^-31 kg)`

A

`5.3xx10^-18J`

B

`5.3xx10^-21J`

C

`5.3 xx10^-19 J`

D

`5.3 xx10^-16J`

Text Solution

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The correct Answer is:
C
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