MCQ
A bullet hits and gets embedded in a solid block resting on a horizontal frictionless table. What is conserved ?
  • A
    Momentum and kinetic energy
  • B
    Kinetic energy alone
  • Momentum alone
  • D
    Neither momentum nor kinetic energy

Answer

Correct option: C.
Momentum alone
(c)

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Heat is supplied to a certain homogenous sample of matter, at a uniform rate. Its temperature is plotted against time, as shown. Which of the following conclusions can be drawn
Image
Two speakers connected to the same source of fixed frequency are placed $2.0 \mathrm{~m}$ apart in a box. A sensitive microphone placed at a distance of $4.0 \mathrm{~m}$ from their midpoint along the perpendicular bisector shows maximum response. The box is slowly rotated until the speakers are in line with the microphone. The distance between the midpoint of the speakers and the microphone remains unchanged. Exactly five maximum responses are observed in the microphone in doing this. The wavelength of the sound wave is
When two bodies collide elastically, then
Force between two unit pole strength placed at a distance of one metre is
The temperature of reservoir of Carnot's engine operating with an efficiency of $70 \%$ is $1000 K$. The temperature of its sink is
According to Newton's law of cooling, the rate of cooling of a body is proportional to $(\Delta \theta)^n$, where $\Delta \theta$ is the difference of the temperature of the body and the surroundings, and $n$ is equal to
The intensity of sound from a radio at a distance of 2 metres from its speaker is $1 \times 0^{-2} \mu \mathrm{W} / \mathrm{m}^2$. The intensity at a distance of 10 meters would be
The displacement of a particle is given by $y=a+b t+c t^2-d t^4$.The initial velocity and acceleration are respectively
Newton/metre $e^2$ is the unit of
An engine pump is used to pump a liquid of density $\rho$ continuously through a pipe of cross-sectional area $A$. If the speed of flow of the liquid in the pipe is $v$, then the rate at which kinetic energy is being imparted to the liquid is