Home
Class 12
PHYSICS
The time period of revolution of electro...

The time period of revolution of electron in its ground state orbit in a hydrogen atom is `1.60 xx 10^(-16)` second. The time period of revolution of the electron in its first excited state in a `Li^(++)` ion is:

A

`1.42 xx 10^(-16) s`

B

`1.20 xx 10^(-16) s`

C

`2.32 xx 10^(-16) s`

D

`2.42 xx 10^(-16) s`

Text Solution

Verified by Experts

The correct Answer is:
A
`T = (2 pi r)/(v)`, `T = (2 pi a_(0))/(v_(1)) (n^(2))/(z). (n)/(z)`
`T = (2 pi a_(0))/(v_(i)). (n^(3))/(z^(2)), T prop (n^(3))/(z^(2))`
`(T_(2))/(T_(1)) = (n_(2)^(3))/(n_(1)^(3)). (z_(1)^(2))/(z_(2)^(2)) = (8)/(1) xx (1)/(9)`, `T_(2) = (8)/(9) T_(1) = (8)/(9) xx 1.6 xx 10^(-16)`
`T_(2) = 1.42 xx 10^(-16)s`
Promotional Banner

Similar Questions

Explore conceptually related problems

The time period of revolution of electron in its ground state orbit in a hydrogen atom is 1.60xx 10 ^(-16)s. The time period of revolution of the electron in its second excited state in a He ^(+) ion is:

The time period of revolution of an electron in its ground state orbit in a hydrogen atom is 1.6 xx 10^(-16) s. The frequency of the revoltuion in ( s^(-1) ). of the electron in its second exited state is

The period of revolution of an electron in the ground state of hydrogen atom is T. The period of revolution of the electron in the first excited state is

The period of revolution of the electron in the third orbit in a hydrogen atom is 4.132 xx 10^(-15) s . Hence find the period in the 5th Bohr orbit.

The period of revolution of electron in the third orbit in a H-atom is 4.132 xx 10^(-15)s . Hence the period in the fourth orbit is

The time period of the electron in the ground state of hydrogen atom is two times the times period of the electon in the first excited state of a certain hydrongen like atom (Atomic number Z). The value of Z is

A H–atom in ground state has time period T = 1.6 xx 10^(–16) sec. find the frequency of electron in first excited state