MCQ
When two bodies collide elastically, then
- AKinetic energy of the system alone is conserved
- BOnly momentum is conserved
- ✓Both energy and momentum are conserved
- DNeither energy nor momentum is conserved
✓
Answer
Correct option: C.
Both energy and momentum are conserved
(c)
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
line spectra are due to
Bulk modulus was first defined by
A virtual image larger than the object can be obtained by
The fundamental note produced by a closed organ pipe is of frequency $f$. The fundamental note produced by an open organ pipe of same length will be of frequency
→Let $n_P$ and $n_e$ be the number of holes and conduction electrons respectively in a semiconductor. Then
→Three light bulbs of $40 W, 60 W$ and $100 W$ are connected in series with $220 V$ source. Which one of the bulbs will glow brightest
→In order to make the effective acceleration due to gravity equal to zero at the equator, the angular velocity of rotation of the earth about its axis should be $\left(g=10 \mathrm{~ms}^{-2}\right.$ and radius of earth is $6400 \ \mathrm{kms})$
→A police car horn emits a sound at a frequency $240 \mathrm{~Hz}$ when the car is at rest. If the speed of the sound is $330 \mathrm{~m} / \mathrm{s}_{\llcorner}$the frequency heard by an observer who is approaching the car at a speed of $11 \mathrm{~m} / \mathrm{s}$, is :
→The graph is drawn between the applied force $F$ and the strain $(x)$ for a thin uniform wire. The wire behaves as a liquid in the part
→
The maximum current that can be measured by a galvanometer of resistance $40 \,\Omega$ is $10\, mA$. It is converted into a voltmeter that can read upto $50\, V$. The resistance to be connected in series with the galvanometer is ... (in $ohm$)
→