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The wavelength associated with a golf ba...

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

A

`10^(-10)m`

B

`10^(-20)m`

C

`10^(-30)m`

D

`10^(-40)m`

Text Solution

Verified by Experts

The correct Answer is:
C
Speed of golf ball, `v = 5m//h = (5m)/(60 xx 60s)`
`= 1//720 ms^(-1)`
Mass of golf ball, `m = 200 g = 0.2 kg`
`lambda = (h)/(mv) = (6.6 xx 10^(-34) Js)/((1//720 ms^(-1))xx(0.2 kg))`
`= (6.6 xx 10^(-34) xx 720 xx 10)/(2)`
`= 6.6 xx 0.36 xx 10^(-30) m`
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