MCQ
According to Bohr hypothesis, discrete quantity is:
- AMomentum
- BAngular velocity
- CPotential energy
- ✓Angular momentum
✓
Answer
Correct option: D.
Angular momentum
Bohr's hypothesis
Electrons revolves round the nucleus in water orbits.
Orbit of the electron around the nucleus can take only some special values of radius.
The energy of the atom as a definite value in these orbits.
In this Orbits, Angular momentum $(e)$ of the electron is integral multiple of the plank's constant h divided by $2n$
$\text{i.e. l}=\text{n}\frac{\text{h}}{2\text{n}}.$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Two bulbs each marked 100 W, 220 V are connected in series across 220 V supply. The power consumed by them, when lit, is
Two particles move at right angle to each other. Their de Broglie wavelengths are ${\lambda _1}$ and ${\lambda _2}$ respectively. The particles suffere perfectly inelastic collision. The de Broglie wavelength $\lambda $ , of the final particle, is given by
→When an electric dipole $\overrightarrow{\mathrm{p}}$ is placed in a uniform electric field $\overrightarrow{\mathrm{E}}$ then at what angle between $\overrightarrow{\mathrm{p}}$ and $\overrightarrow{\mathrm{E}}$ the value of torque will be maximum
→In the figure given below, a ray of light travelling in a medium of refractive index $\mu$ passes through two different connected rectangular blocks of refractive indices $\mu_1$ and $\mu_2\left(\mu_2 > \mu_1\right)$ The angle of incidence $\theta_1$ is increased slightly. Then, the angle $\theta_2$ is
→The phase difference between the flux linked with a coil rotating in a uniform magnetic field and induced $e.m.f.$ produce in it is
→In an ionised sodium atom, an electron is moving in a circular path of radius $r$ with angular velocity $\omega $. The magnetic induction in $wb/m^2$ produced at the nucleus will be
→A heave uniform rod Is hanging vertically form a foxed support. It is stretched by its won weight. The diameter of the rod is.
In a potentiometer experiment the balancing with a cell is at length $240\, cm$. On shunting the cell with a resistance of $2$ $\Omega$, the balancing length becomes $120\, cm$. The internal resistance of the cell is ................. $\Omega $
→A galvanometer $(G)$ $\Omega$ of 2 risistance is connected in the givn circuit the raito of charge in $C_1$ and $C_2$ is:
→ 
In a series $LCR$ circuit, the inductance $L$ is $10\,mH$, capacitance $C$ is $1\,\mu\,F$ and resistance $R$ is $100\,\Omega$. The frequency at which resonance occurs is :-
→