MCQ
In hydrogen atom which quantity is integral multiple of $\frac{h}{2 \pi}$
- ✓Angular momentum
- BAngular velocity
- CAngular acceleration
- DMomentum
✓
Answer
Correct option: A.
Angular momentum
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
The two interfering waves have intensities in the ratio $9: 4$. The ratio of intensities of maxima and minima in the interference pattern will be
→The reactance of a coil when used in the domestic ac power supply ($220$ volts, $50$ cycles per second) is $50\ ohms$. The inductance of the coil is nearly
→In the circuit shown in figure reading of voltmeter is $V$ when only $S$ is closed, reading of voltmeter is $V$ when only $S$ is closed and reading of voltmeter is $V$ when both $S$ and $S$ are closed. Then
→A star emitting light of wavelength $5896 \mathring A$ is moving away from the earth with a speed of $3600 km / sec$. The wavelength of light observed on earth will $\left(c=3 \times 10^8 m / sec\right.$ is the speed of light)
→Forty electric bulbs are connected in series across a $220 V$ supply. After one bulb is fused, the remaining $39$ are connected again in series across the same supply. The illumination will be
→Which of the following velocity time graphs shows a realistic situation for a body in motion
The coil in a moving coil galvanometer experiences torque proportional to current passes through it. If a steady current $i$ is passed through it the steady deflection of the coil is found to be $90^o$ . Now the steady current is switched off and a charge $q$ is suddenly passed through coil. If the coil has $N$ turns of area $A$ and its moment of inertia is $I$ about the axis it is going to rotate then the maximum angle through which it deflects upon passing charge $q$ is
→The earth revolves about the sun in an elliptical orbit with mean radius $9.3 \times 10^7 \mathrm{~m}$ in a period of 1 year. Assuming that there are no outside influences
→If $\lambda=10 \mathring A$, then it corresponds to
→Photon and electron are given same energy $\left(10^{-20} \mathrm{~J}\right)$. Wavelength associated with photon and electron are $\lambda_{P h}$ and $\lambda_{e l}$ then correct statement will be
→