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The ratio of area covered by second orbi...

The ratio of area covered by second orbital to the first orbital is.

A

`1:1`

B

`1:16`

C

`8:1`

D

`16:1`

Text Solution

Verified by Experts

The correct Answer is:
D
Area of circle is `pir^(2)`.
According to Bohr's theory,
`r_(n) = (n^(2)r)/(Z)`
i.e., fro a given `Z`,
`r_(n) prop n^(2)`
Hence,
`A_(n) prop n^(4)`
`(A_(2))/(A_(1)) = ((2)^(4))/((1)^(4)) = (16)/(1)`
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