In Davisson-Germer experiment maximum intensity is observed at

Options

A. `50^(@) and 54V`
B. `54^(@) and 50V`
C. `50^(@) and 50V`
D. `65^(@) and 50V`

Answer

C

Explanation

`P=n((E)/(t))implies 10kWh=n[(200MeV)/(t)]`
`10xx10^(3)xx60xx60=nxx200xx10^(6)xx1.6xx10^(-19)(becauset=1)`
`n=(10xx10^(3)xx60xx60)/(200xx10^(6)xx1.6xx10^(-19))`
`n=(36xx10^(19))/(200xx1.6)=(360xx10^(18))/(200xx1.6)`
`n=1.125xx10^(18)`
`n=11.25xx10^(17)`