Bohr's radius for the fifth orbit of the hydrogen atom in $A^{0}$ is :

13.225

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6.675

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13.742

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7.452

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Solution

The correct option is A $13.225$
As we know,

r $_{n}$ = r $_{0}$ $\times$ n $^{2}$

r $_{5}$ = (0.529 $\times$ 10 $^{- 10}$ ) $\times$ (5 $^{2}$ ) m

= 13.225 $\times$ 10 $^{- 10}$ m

= 13.225 $\times$ 10 $^{- 10}$ m = $13.225 A^{0}$

Hence, option $A$ is correct.

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Bohr's radius for the fifth orbit of the hydrogen atom in A0 is :

The correct option is A 13.225As we know,rn = r0 × n2r5 = (0.529 × 10−10) × (52) m = 13.225 × 10−10 m = 13.225 × 10−10 m = 13.225 A0Hence, option A is correct.

Bohr's radius for the fifth orbit of the hydrogen atom in $A^{0}$ is :

The correct option is A $13.225$
As we know,

r $_{n}$ = r $_{0}$ $\times$ n $^{2}$

r $_{5}$ = (0.529 $\times$ 10 $^{- 10}$ ) $\times$ (5 $^{2}$ ) m

= 13.225 $\times$ 10 $^{- 10}$ m

= 13.225 $\times$ 10 $^{- 10}$ m = $13.225 A^{0}$

Hence, option $A$ is correct.