The mass of a hydrogen molecules is `3.32 xx 10 ^(-27) ` Kg . If wall of area ` 2 cm ^(2) ` at an angle of `45 ^(@)` to the normal , and rebound elastically with a speed of `10 ^(3) m//s ` , then the pressure on the wall is nearly

Options

A. `2.35 xx 10 ^(2) N//m ^(2)`
B. `4.70 xx 10^(2) N//m ^(2)`
C. `2.35 xx 10^(3) N// m ^(2)`
D. `4.70 xx 10 ^(3) N//m ^(2)`