Download App

6. system of particles and rotational motion — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics6. system of particles and rotational motion1 Mark
MCQ
One circular ring and one ciruclar disc, both are having the same mass and radius. the ratio of their moments of inertia about the axes passing through their centres and perpendicular to their planes, will be
  • A
    $1 : 1$
  • ✓
    $2 : 1$
  • C
    $1 : 2$
  • D
    $4 : 1$
✓

Answer

Correct option: B.
$2 : 1$
b
$\frac{{{I_{Ring}}}}{{{I_{Disc}}}} = \frac{{M{R^2}}}{{\frac{1}{2}M{R^2}}} = 2:1$

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

Explore more

More "M.C.Q (1 Marks)" from 6. system of particles and rotational motion→6. system of particles and rotational motion — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

A thermodynamic system is taken from state $A$ to $B$ along $ACB$ and is brought back to $A$ along $BDA$ as shown in the $PV$ diagram. The net work done during the complete cycle is given by the area
→
A circular disc of mass $2 \,kg$ and radius $10 \,cm$ rolls without slipping with a speed $2 \,m / s$. The total kinetic energy of disc is .......... $J$
→
To make the frequency double of a spring oscillator, we have to
→
A large nonconducting sheet M is given a uniform charge density. Two uncharged small metal rods A and B are placed near the sheet as shown in figure:
→
In Newton's experiment of cooling, the water equivalent of two similar calorimeters is $10 $ gm each. They are filled with $350 gm$ of water and $300 gm$ of a liquid (equal volumes) separately. The time taken by water and liquid to cool from ${70^o}C$ to ${60^o}C$ is $3$ min and $95$ sec respectively. The specific heat of the liquid will be ...... $Cal/gm\,^oC$
→
Which of the following is the correct formula for finding distance $(d)$ between two points $(x_1,y_1)$ and $(x_2, y_2)$?
→
Consider a $20\, kg$ uniform circular disk of radius $0.2\, m$. It is pin supported at its center and is at rest initially. The disk is acted upon by a constant force $F =20\, N$ through a massless string wrapped around its periphery as shown in the figure.

Suppose the disk makes n number of revolutions to attain an angular speed of $50\, rad s ^{-1} .$ The value of $n$, to the nearest integer, is.......... [Given : In one complete revolution, the disk rotates by $6.28\, rad$ ]

→
A body of mass $m$ kg is lifted by a man to a height of one metre in $30\, sec$. Another man lifts the same mass to the same height in $60\, sec$. The work done by them are in the ratio
→
The wavelength of maximum energy released during an atomic explosion was $2.93 \times {10^{ - 10}}m$. Given that Wein's constant is $2.93 \times {10^{ - 3}}m - K$, the maximum temperature attained must be of the order of
→
An iron ball and a wooden ball of the same radius are released from a height $‘h’$ in vacuum. The time taken by both of them to reach the ground is
→