MCQ
Whose dimensions is $M L^2 T^{-1}$
  • A
    Torque
  • Angular momentum
  • C
    Power
  • D
    Work

Answer

Correct option: B.
Angular momentum
(b) Angular momentum $=m v r=M L T^{-1} \times L=M L^2 T^{-1}$

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

The coefficient of viscosity for hot air is
Four wires of identical length, diameters and of the same material are stretched on a sonometre wire. If the ratio of their tensions is 1 : $4: 9: 16$ then the ratio of their fundamental frequencies are
A neutron makes a head-on elastic collision with a stationary deuteron. The fractional energy loss of the neutron in the collision is
A point object is placed at a distance of $10 \mathrm{~cm}$ and its real image is formed at a distance of $20 \mathrm{~cm}$ from a concave mirror. If the object is moved by $0.1 \mathrm{~cm}$ towards the mirror, the image will shift by about
As per Bohr model, the minimum energy (in $eV$ ) required to remove an electron from the ground state of doubly ionized $L i$ atom $(Z=3)$ is
A closely wound solenoid of $2000$ $turns$ and area of cross-section  $1.5 \times 10^{-4}\ m^2$ carries a current of $2.0\, A.$ It is suspended through its centre and perpendicular to its length, allowing it to turn in a horizontal plane in a uniform magnetic field $5 \times 10^{- 2}$ $tesla$ making an angle of $30^o $ with the axis of the solenoid. The torque on the solenoid will be 
The frequency of a FM transmitter without signal input is called
A particle is tied to $20 cm$ long string. It performs circular motion in vertical plane. What is the angular velocity of string when the tension in the string at the top is zero
The spectrum of radiation $1.0 \times 10^{14} \mathrm{~Hz}$ is in the infrared region. The energy of one photon of this in joules will be
A stone tied to a string of length $L$ is whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time, the stone is at its lowest position and has a speed $u$. The magnitude of the change in its velocity as it reaches a position where the string is horizontal is