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Calculate the wavelength associated with...

Calculate the wavelength associated with a proton moving at `1.0xx10^(3)m//s`. (Mass of proton `=1.67xx10^(-27)kg` and `h=6.63xx10^(-34)` Js)

A

0.032 nm,

B

0.40 nm

C

2.5 nm

D

14.0 nm

Text Solution

Verified by Experts

The correct Answer is:
B
`lamda=h/(mv)=(6.63xx10^(-34))/(1.67xx10^(-27)xx1xx10^(3))`
`=3.9xx10^(-10)m` `=4xx10^(-10)m=0.40nm`
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