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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

14.0 nm

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The correct Answer is:
B
`lamda=h/(mv)`
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