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The speed of an eletctron having a wavel...

The speed of an eletctron having a wavelength of `10^(-10)m` is

A

`7.25 xx 10^(6)m//s`

B

`6.26 xx 10^(6)m//s`

C

`5.25 xx 10^(6)m//s`

D

`4.24 xx 10^(6)m//s`

Text Solution

Verified by Experts

The correct Answer is:
A
`v = (p)/(m) = (h)/(m lambda) = (6.6 xx 10^(-34))/(9.1 xx 10^(-31) xx 10^(-10)) = 7.25 xx 10^(6)m//s`
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A2Z-ATOMIC PHYSICS-Section D - Chapter End Test
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