For a certain metal, v = `2v_0` and the electrons come out with a maximumvclocity of `40 xx 10^6 m s^(-1)`. If the value of `v = 5v_0` then maximum velocity of photoelectrons will be :

Options

A. `2 xx 10 ^7 ms^(-1)`
B. `8 xx 10^6 ms^(-1)`
C. `2 xx 10^6 ms^(-1)`
D. `8 xx 10 ^5 ms ^(-1)`

Answer

B