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de-Brogile wavelength of an electron acc...

de-Brogile wavelength of an electron accelerated by a voltage of `50 V` is close to (`|e| = 1.6 xx 10^(-19)C, m_(e) = 9.1 xx 10^(-31)` kg, `h = 6.6 xx 10^(-34)` Js) :-

A

(a)`0.5 Å`

B

(b)`1.2 Å`

C

(c)`1.7 Å`

D

(d)`2.4 Å`

Text Solution

Verified by Experts

The correct Answer is:
A
`lambda=sqrt(150/50)=sqrt(3)=1.7`
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