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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)s` (mass of proton `= 1.67 xx 10^(-27) kg and h = 6.63 xx 10^(-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
Using de Broglie relationshiip `lambda=(h)/(mv)=(6.63xx10^(-34))/(1.67 xx 10^(-27)xx10^(3))=3.97xx10^(-10) m= 0.40 nm`
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