New chat PYQ Library Doubts Rank report

Sign in to see Recents

Sign in to save progress →

Atoms and Nuclei question

2023 · 6 Apr · Shift 2 · Q60

Guest · try one question or challengeGuest · try one question or challenge

PYQ Library
JEE Main
Physics
Atoms and Nuclei
2023 · 6 Apr · Shift 2 · Q60

Atoms and Nuclei question

2023 · 6 Apr · Shift 2 · Q60

JEE MainPhysicsAtoms and NucleiMCQ+4 / −1

A small particle of mass

m

moves in such a way that its potential energy

U=\frac{1}{2} m ~\omega^{2} r^{2}

where

\omega

is constant and

r

is the distance of the particle from origin. Assuming Bohr's quantization of momentum and circular orbit, the radius of

n^{\text {th }}

orbit will be proportional to,

A
$\sqrt{n}$
B
$n^{2}$
C
$\frac{1}{n}$
D
$n$

More from Atoms and Nuclei

Experimentally it is found that $12.8 eV$ energy is required to separate a hydrogen atom into a proton and an electron. So the orbital radius of the electron in a hydrogen atom is $\frac{9}{x} \times 1 0^{- 10} m$ . The…2023 · Numerical
For a nucleus $_{A}^{A} X$ having mass number $A$ and atomic number $Z$ A. The surface energy per nucleon $(b_{s}) = - a_{1} A^{2/3}$ . B. The Coulomb contribution to the…2023 · MCQ
A nucleus with mass number 242 and binding energy per nucleon as $7.6 MeV$ breaks into two fragment each with mass number 121. If each fragment nucleus has binding energy per nucleon as $8.1 MeV$ , the total gain in…2023 · Numerical
The waves emitted when a metal target is bombarded with high energy electrons are2023 · MCQ
The ratio of wavelength of spectral lines $H_{α}$ and $H_{β}$ in the Balmer series is $\frac{x}{20}$ . The value of $x$ is .2023 · Numerical
The angular momentum for the electron in Bohr's orbit is L. If the electron is assumed to revolve in second orbit of hydrogen atom, then the change in angular momentum will be2023 · MCQ
If 917 $A o$ be the lowest wavelength of Lyman series then the lowest wavelength of Balmer series will be $A o$ .2023 · Numerical
The energy of $He^{+}$ ion in its first excited state is, (The ground state energy for the Hydrogen atom is $- 13.6 eV)$ :2023 · MCQ