The Speed of an electron having a wavelength of 5.0 cm is

Options

A. 11.81`ms^(−1)`
B. 14.5`ms^(−1)`
C. 0.0145`ms^(−1)`
D. 0.141`ms^(−1)`

Answer

A

Explanation

`3ShArrS_(3)`
`1 0`
`1-alpha (alpha)/(3) rArr i=1-(2alpha)/(3)`
Now `0.1(1-(2alpha)/(3))=0.08`
`rArr alpha=0.3`. Hence `30%` trimerization.