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In Bohr's model of hydrogen atom, the ra...

In Bohr's model of hydrogen atom, the radius of the first electron orbit is `0.53` A. What will be the radius of the third orbit?

A

`4.77 Å`

B

`47.7 Å`

C

`9 Å`

D

`0.09 Å`

Text Solution

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The correct Answer is:
A

`r_(3) = (3)^(2) r_(1) = 9 xx 0.53 = 4.77 Å`
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