NEET 2022 Phase 2 | Rotational Motion Question 11 | Physics

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$$\pi$$

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

The ratio of the radius of gyration of a thin uniform disc about an axis passing through its centre and normal to its plane to the radius of gyration of the disc about its diameter is

2 : 1

$$\sqrt2$$ : 1

4 : 1

1 : $$\sqrt2$$

NEET 2021

MCQ (Single Correct Answer)

-1

From a circular ring of mass 'M' and radius 'R' an arc corresponding to a 90$$^\circ$$ sector is removed. The moment of inertia of the remaining part of the ring about an axis passing through the center of the ring and perpendicular to the plane of the ring is 'K' times 'MR²'. Then the value of 'K' is :

$${1 \over 8}$$

$${3 \over 4}$$

$${7 \over 8}$$

$${1 \over 4}$$

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NEET Subjects

Biology

Zoology

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