For a particle of a rotating rigid body, v=r ,So - Vidyadip

MCQ

For a particle of a rotating rigid body, $\text{v}=\text{r}\omega,\text{So}$

A
$\omega\propto(\frac{1}{\text{r}})$
B
$\omega$ is independent of r.
C
$\text{v }\propto\text{ r}$
✓
C and D both

✓

Answer

Correct option: D.

C and D both

Explanation:
As $\omega =\frac{2\pi}{\text{T}}$ constant, therefore, $\text{v }\propto\text{ r}$ Also, $\omega$ does not depend on r.

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 Systems of Particles and Rotational Motion→Systems 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

$0.02\, moles$ of an ideal diatomic gas with initial temperature $20^{\circ} C$ is compressed from $1500 \,cm ^{3}$ to $500 \,cm ^{3}$. The thermodynamic process is such that $p V^{2}=\beta$, where $\beta$ is a constant. Then, the value of $\beta$ is close to (the gas constant, $R=8.31 \,J / K / mol$ ).

What is the phase difference between the displacement wave and pressure wave in sound wave?

Asphere of radius $R$ and made of material of relative density $\sigma$ has a concentric cavity of radius $r$. It just floats when placed in a tank full of water. The value of the ratio $R/r$ will be

In rotation of a rigid body about a fixed axis is that in which:

If $g$ is the acceleration due to gravity on the earth's surface, the gain in the potential energy of an object of mass m raised from the surface of earth to a height equal to the radius of the earth $R$, is

A car $'A'$ chasing another car $'B'$ with a speed of $20\, m/s$ sounding a horn of $180\, Hz$. While both cars are moving towards a stationary siren of frequency $170\, Hz$. What is the speed of car $B$ so that it can't hear any beat ....$m/s$ (speed of sound $= 340\, m/s$)

Two projectiles $A$ and $B$ are thrown with the same speed but angles are $40^{\circ}$ and $50^{\circ}$ with the horizontal. Then

A particle of mass $10\, g$ is kept of the surface of a uniform sphere of mass $100\, kg$ and a radius of $10\, cm .$ Find the work to be done against the gravitational force between them to take the particle far away from the sphere. (you make take $\left.G=6.67 \times 10^{-11} Nm ^{2} / kg ^{2}\right)$

A body falls from a height $h = 200\,m$ (at New Delhi). The ratio of distance travelled in each $2\, sec$ during $t = 0$ to $t = 6$ second of the journey is

Water is used to cool radiators of engines in car because