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The radius of the lowest orbit of the hy...

The radius of the lowest orbit of the hydrogen atom is

A

`1Å`

B

`0.53 Å`

C

`0.1 Å`

D

`0.05 Å`

Text Solution

Verified by Experts

The correct Answer is:
B
`r_(n)=(in_(0)n^(2) h^(2))/(pi me^(2))`
`:. r_(1)=(8.85xx10^(-12)xx1xx(6.63xx10^(-34))^(2))/(3.14xx9.1xx10^(-31)xx(1.6xx10^(-19))^(2))`
`:. r_(1)=0.53xx10^(-10)m`
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