1.

The velocity of electron in the third Bohr orbit of hydrogen is v. The velocity of the electron in the first orbit would be:

Answer»

9v
3V
v/3
v/9

Solution :`v_(N)=(2.19xx10^(6)Z)/n ms^(-1)`
`v_(n)PROP 1/n` for H ATOM
`(v_(3))/(v_(1))=1/3`if `v_(3)=v`, then `v_(1)=3v`


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