If the frequency of light in a photoelectric experiment is doubled the stopping potential will

Options

A. be doubled
B. be halved
C. gt double
D. lt double

Answer

C

Explanation

`h upsilon = phi + eV_(s_(1))` …(i)
`h.2 upsilon =phi + eV_(s_(2))` …(ii)
`(V_(s_(2)))/(V_(s_(1))) =(2h upsilon -phi)/(h upsilon -phi) =(h upsilon -phi)/(h upsilon -phi) +(h upsilon)/(h upsilon -phi)`
`=1+(gt1) = gt2`
`V_(s_(2)) gt 2V_(s_(1))`