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Characteristics of Bohr's Atomic Model

Question

According to bohr model, the diameter of first orbit of hydrogen atom will approximately be
$0.529$ $A^{0}$
$0.725$ $A^{0}$
$2.25$ $A^{0}$
$1$ $A^{0}$

A

0.529

A^{0}

B

0.725

A^{0}

C

1

A^{0}

D

2.25

A^{0}

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Solution

Verified by Toppr

$r = \frac{a_{0} n^{2}}{Z^{2}}$
$r = a_{0} (1)^{2}$
$= a_{0}$
$= 0.53 A^{0}$

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