NEET 2016 Phase 2 | Rotational Motion Question 25 | Physics

NEET 2016 Phase 2

MCQ (Single Correct Answer)

-1

A light rod of length $$l$$ has two masses m₁ and m₂ attached to its two ends. The moment of inertia of the system about an axis perpendicular to the rod and passing through the centre of mass is

$${{{m_1}{m_2}} \over {{m_1} + {m_2}}}{l^2}$$

$${{{m_1} + {m_2}} \over {{m_1}{m_2}}}{l^2}$$

$$\left( {{m_1} + {m_2}} \right){l^2}$$

$$\sqrt {{m_1}{m_2}} \,{l^2}$$

NEET 2016 Phase 1

MCQ (Single Correct Answer)

-1

A disc and a sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first?

Both reach at the same time

Depends on their masses

Disc

Sphere

NEET 2016 Phase 1

MCQ (Single Correct Answer)

-1

From a disc of radius R and mass M, a circular hole of diameter R, whose rim passes through the centre is cut. What is the moment of inertia of the remaining part of the disc about a perpendicular axis, passing through the centre?

11 MR²/32

9 MR²/32

15 MR²/32

13 MR²/32

NEET 2016 Phase 1

MCQ (Single Correct Answer)

-1

A uniform circular disc of radius 50 cm at rest is free to turn about an axis which is perpendicular to its plane and passes through its centre. It is subjected to a torque which produces a constant angular acceleration of 2.0 rad s^$$-$$2. Its net acceleration in m s^$$-$$2 at the end of 2.0 s is approximately

6.0

3.0

8.0

7.0

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Biology

Botany

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