NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 756 - 760 of 2320

Access detailed explanations (illustrated with images and videos) to 2320 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time! View Sample Explanation or View Features.

Rs. 600.00 or

How to register?

Question number: 756

Edit
MCQ▾

Question

2 bodies of different masses of 3 kg and 6 kg are moving with, velocities 20 m/s and 10 m/s towards each other due to mutual gravitational attraction. What is the velocity of their center of mass?

Choices

Choice (4)Response

a.

6 m/s

b.

8 m/s

c.

5 m/s

d.

Zero

Question number: 757

Edit
MCQ▾

Question

A conducting wire in the shape of Y with each side of length is moving in a uniform magnetic field B, with a uniform speed v as shown in fig. The induced emf at the two ends X and Y of the wire will be-

Choices

Choice (4)Response

a.

2 Blv sin (θ/2)

b.

2 Blv

c.

2 Blv cos (θ/2)

d.

Zero

Question number: 758

Edit
MCQ▾

Question

Two circular coils can be arranged in any of the three situations shown in the figure. Their mutual inductance will be

Choices

Choice (4)Response

a.

The same in all situations

b.

Maximum in situation C

c.

Maximum in situation A

d.

Maximum in situation B

Question number: 759

Edit
MCQ▾

Question

If linear density of a rod of length 3m varies as λ = 2 + x them the position of the center of gravity of the rod is

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 760

Edit
MCQ▾

Question

A chain of linear density 10 kg/m and length 8 m is lying on the table with 2 m of chain hanging from the edge. The work done in lifting the chain on the table will be –

Choices

Choice (4)Response

a.

176 J

b.

532 J

c.

116 J

d.

392 J

Developed by: