As per given figure to complete the circular loop what should be … - Vidyadip

MCQ

As per given figure to complete the circular loop what should be the radius if initial height is $5 m$

A
$4 m$
B
$3 m$
C
$2.5 m$
✓
$2 m$

✓

Answer

Correct option: D.

$2 m$

(d) In the given condition friction provides the required centripetal force and that is constant. i.e. $m \omega r$ =constant$\Rightarrow r \propto \frac{1}{\omega^2} \therefore r_2=r_1\left(\frac{\omega_1}{\omega_2}\right)^2=9\left(\frac{1}{3}\right)^2=1 cm$

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 "MCQ" from Motion in Two Dimension→Motion in Two Dimension — all question types→JEE physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

If $I_0$ is the intensity of the principal maximum in the single slit diffraction pattern, then what will be its intensity when the slit width is doubled

The potential energy of a molecule on the surface of liquid compared to one inside the liquid is

Given that $\vec{A}+\vec{B}=\vec{C}$ and that $\vec{C}$ is $\perp$ to $\vec{A}$. Further if $|\vec{A}|=|\vec{C}|$, then what is the angle between $\vec{A}$ and $\vec{B}$

Two identical solid copper spheres of radius $R$ placed in contact with each other. The gravitational attracton between them is proportional to

The specific heat of hydrogen gas at constant pressure is $C_P=3.4 \times 10^3 \mathrm{cal} / \mathrm{kg}^{\circ} \mathrm{C}$ and at constant volume is $C_V=2.4 \times 10^3 \mathrm{cal} / \mathrm{kg}^{\circ} \mathrm{C}$. If one kilogram hydrogen gas is heated from $10^{\circ} \mathrm{C}$ to $20^{\circ} \mathrm{C}$ at constant pressure, the external work done on the gas to maintain it at constant pressure is

The resistance of a galvanometer is $50\,\Omega $ and it requires $2\,\mu A$ per two division deflection. The value of the shunt required in order to convert this galvanometer into ammeter of range $5\,A$ is (The number of divisions on the galvanometer scale on one side is $30$)

A pendulum bob on a $2 m$ string is displaced 60 from the vertical and then released. What is the speed of the bob as it passes through the lowest point in its path

A hammer of mass $1 \mathrm{~kg}$ having speed of $50 \mathrm{~m} / \mathrm{s}$, hit a iron nail of mass $200 \mathrm{gm}$. If specific heat of iron is $0.105 \mathrm{callgm}^{\circ} \mathrm{C}$ and half the energy is converted into heat, the raise in temperature of nail is

The variation of magnetic susceptibility $(\chi)$ with magnetising field for a paramagnetic substance is

An electron in the $n=1$ orbit of hydrogen atom is bound by $13.6 eV$. If a hydrogen atom is in the $n=3$ state, how much energy is required to ionize it