The frequency of oscillation of current in the indcutor is

Options

A. `6.2xx10^(15)`
B. `3.1xx10^(15)`
C. `1.2xx10^(16)`
D. `2.5xx10^(16)`

Answer

D

Explanation

`because fprop(z^(2))/(n^(3))`
`f_(H)=R(1^(2))/(2^(3))=(R)/(8)` . . . (i)
and `f_(He^(+))=R(2^(2))/(1^(3))=4R` . . . (ii)
`therefore f_(He^(+))=32f_(H)=32xx7.8xx10^(14)=249.6xx10^(14), `
`~~2.5xx10^(16)`.