1.

Electron in a hydrogen atom makes a transition from n_1" to "n_2, where n_1 and n_2 are principal quantum numbers of two states. Assuming Bohr's model to be valid, time period of clectron in the n_1 state is found to be eight times the time period in the final state. Then possible values of principal quantum numbers n_1 and n_2 are:

Answer»

4,2
6,3
8,1
8,3

Solution :`((T_(1))/T_(2))^(2) =r_(1)^(3)/r_(2)^(3)" Now "R alpha n^(2)`
`((T_(1))/T_(2))^(2)=((n_(1))/(n_(2))^(6)" But "(T_(1)/T_(2))^(2)=(8/1)^(2)=(4/2)^(6)`
`(n_(1)/n_(2))^(6)=(4/2)^(6)""n_(1)/n_(2)=4/2`


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