NEET Physics: Questions 865 - 869 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: 865

» Laws of Motion » Force and Inertia

Assertion-Reason▾

Assertion (Ꭺ)

In the given figure, a=m2m1m1+m2g

Reason (Ꭱ)

In the given figure, T=m1+m22m1m2g

Finding acceleration in the pulley system

Finding Acceleration in the Pulley System

What is the acceleration in this system

Choices

Choice (4) Response

a.

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

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is true but Ꭱ is false

d.

Ꭺ is false but Ꭱ is true

Question number: 866

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

A rifle man, who together with his rifle has a mass of 100 kg, stands on a smooth surface fires 10 shots horizontally. Each bullet has a mass 10 gm and a muzzle velocity of 200 m/s. What velocity does rifle man acquire at the end of 10 shots?

Choices

Choice (4) Response

a.

1.2 m/s

b.

0.5 m/s

c.

0.6 m/s

d.

-0.2 m/s

Question number: 867

» Laws of Motion » Static and Kinetic Friction

MCQ▾

Question

Assuming the length of a chain to be L and coefficient of static friction u. Compute the maximum length of the chain which can be held outside a table without sliding.

Choices

Choice (4) Response

a.

2μL1+μ

b.

3μL1+μ

c.

μL1μ

d.

μL1+μ

Question number: 868

» Laws of Motion » Momentum

MCQ▾

Question

A force of 1 N is applied on a particle for 3 sec, the change in momentum will be -

Choices

Choice (4) Response

a.

3 Ns

b.

6 Ns

c.

2 Ns

d.

4 Ns

Question number: 869

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

The rate of burning of fuel in a rocket is 100 gm/sec. and comes out with and velocity 5 x 10 3 m/s. The force exerted by gas on rocket will be –

Choices

Choice (4) Response

a.

2.5 x l0 6 N

b.

2.5 x l0 4 N

c.

500 N

d.

300 N

f Page
Sign In