(D) The radius of the $n^{th}$ Bohr orbit is given by the formula $r_n = r_0 \times n^2$,where $r_0 = 0.530 \ \mathring{A}$ is the radius of the groun

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(D) The radius of the $n^{th}$ Bohr orbit is given by the formula $r_n = r_0 \times n^2$,where $r_0 = 0.530 \ \mathring{A}$ is the radius of the ground state $(n = 1)$.For the first excited state,$n = 2$.Substituting the values: $r_2 = 0.530 \ \mathring{A} \times (2)^2$.$r_2 = 0.530 \ \mathring{A} \times 4 = 2.12 \ \mathring{A}$.

Class 11 Chemistry Structure of Atom Atomic models and Planck's quantum theory

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The Bohr orbit radius for the hydrogen atom $(n = 1)$ is approximately $0.530 \ \mathring{A}$. The radius for the first excited state $(n = 2)$ orbit is ........... $\mathring{A}$

AIPMT 1998 All AIPMT

A
$0.13$
B
$1.06$
C
$4.77$
D
$2.12$

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Structure of Atom

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Atomic models and Planck's quantum theory

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The Bohr orbit radius for the hydrogen atom $(n = 1)$ is approximately $0.530 \ \mathring{A}$. The radius for the first excited state $(n = 2)$ orbit is ........... $\mathring{A}$

Similar Questions

The energy required for the ionisation of a hydrogen atom is $13.6 \ eV$. What is the energy required for the ionisation of $He^+$ ion (in $eV$)?

$A$ bulb emits monochromatic yellow light of the wavelength $0.57 \ \mu m$. If the rate of emission of quanta per second of the bulb is $14.33 \times 10^{19}$, the power of the bulb (in $Watt$) is $.....$

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