NEET 2023 | Rotational Motion Question 9 | Physics

The ratio of radius of gyration of a solid sphere of mass $$M$$ and radius $$R$$ about its own axis to the radius of gyration of the thin hollow sphere of same mass and radius about its axis is :-

$$5: 3$$

$$2: 5$$

$\sqrt{5}: \sqrt{3}$

$\sqrt{3}: \sqrt{5}$

NEET 2023

MCQ (Single Correct Answer)

-1

The angular acceleration of a body, moving along the circumference of a circle, is :

along the radius towards the centre

along the tangent to its position

along the axis of rotation

along the radius, away from centre

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

An energy of 484 J is spent in increasing the speed of a flywheel from 60 rpm to 360 rpm. The moment of inertia of the flywheel is :

0.07 kg-m²

0.7 kg-m²

3.22 kg-m²

30.8 kg-m²

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

The angular speed of a fly wheel moving with uniform angular acceleration changes from 1200 rpm to 3120 rpm in 16 seconds. The angular acceleration in rad/s² is

2$$\pi$$

4$$\pi$$

12$$\pi$$

104$$\pi$$

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Biology

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Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution