If the radius of the second Bohr of hyd...

If the radius of the second Bohr of hydrogen atom is `r_(2)` the radius of the third Bohr orbit will be

A

`4/9r_(2)`

B

`4r_(2)`

C

`9/4r_(2)`

D

`9r_(2)`

Verified by Experts

The correct Answer is:

C

`r=(n^(2)h^(2))/(4pi^(2)mZe^(2))`
`:.(r_(2))/(r_(3))=(2^(2))/(3^(2))`
`:.r_(3)=9/4r_(2)`
Hence c is the correct answer.

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