The wavelength associtated with a golf ball weight `200 g` and moving at a speed of `5 m h^(-1)` is of the order

Options

A. `10^(-10)m`
B. `10^(-20)m`
C. `10^(-30)m`
D. `10^(-40)m`

Answer

C

Explanation

`m = 200 g = 0.2 kg`
`v = 5 m h^(-1) = (5)/(60 xx 60) m s^(-1) = 0.00139 m s^(-1)`
`lambda = (h)/(mv) = (6.626 xx 10^(-34))/(0.2 xx 0.00139) = 2.3 xx 10^(-30)m `