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Calculate the wavelength (in nanometer) ...

Calculate the wavelength (in nanometer) associated with a proton moving at `1.0xx10^(3)ms^(-1)`(Mass proton `=1.67xx10^(-27)kg` and `h=6.63xx10^(-34)Js`):-

A

0.032 nm

B

0.40 nm

C

2.5 nm

D

14.0nm

Text Solution

Verified by Experts

The correct Answer is:
B
As `lamda=h/(mv)=(6.63 xx10^(-34))/(1.67 xx10^(-27)xx1xx10^3)`
`=3.97 xx10^(-10)m`
`=0.397 xx10^(-9)m =~0.40 nm`
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