NEET Physics: Questions 1982 - 1986 of 2098

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2098 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 1982

» Gravitation » Gravitational Acceleration

MCQ▾

Question

What will be the acceleration due to gravity on the surface of the moon if its radius is 14th the radius of the earth and its mass is 180th the mass of the earth?

Choices

Choice (4) Response

a.

g6

b.

g5

c.

g7

d.

g8

Question number: 1983

» Rotational Motion » Radius of Gyration

MCQ▾

Question

The radius of gyration of a disc of mass 80 g and radius 3 cm, about an axis passing through its center of gravity and perpendicular to the plane is

Choices

Choice (4) Response

a.

6.54 cm

b.

1.76 cm

c.

2.12 cm

d.

3.54 cm

Question number: 1984

» Rotational Motion » Moment of Inertia

MCQ▾

Question

From a uniform wire, two circular loops are made loop-P of radius r and loop-Q of radius nr. Materials of both the loops are same. If the moment of inertia of loop Q about an axis passing through its center and perpendicular to its plane is 8 times that of P about a similar axis, the value of n is (diameter of the wire is very much smaller than r or nr)

Choices

Choice (4) Response

a.

6

b.

4

c.

8

d.

2

Question number: 1985

» Gravitation » Gravitational Acceleration

MCQ▾

Question

At what height above the earth’s surface does the force of gravity decrease by 10%? Assume radius of earth to be 6370 km.

Choices

Choice (4) Response

a.

245 km

b.

300 km

c.

150 km

d.

345 km

Question number: 1986

» Rotational Motion » Moment of Inertia

Assertion-Reason▾

Assertion (Ꭺ)

Moment of inertia of a particle is same, whatever be the axis of rotation.

Reason (Ꭱ)

Moment of inertia depends on mass and perpendicular distance of the particle from its axis of rotation.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

Sign In