NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 412 - 415 of 2142

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Question number: 412

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

Consider two children riding on the merry-go-round Child 1 sits near the edge, Child 2 sits closer to the center. Let V1 and v2 denote the linear speed of child 1 and

Child 2, respectively. Which of the following is/are wrong?

Select the correct answers and mark it according to the following codes:

(1) We cannot determine V 1 & V 2 without more information

(2) v 1 = v 2

(3) v 1 < v 2

(4) v 1 > v 2

Choices

Choice (4) Response

a.

1, 2 and 3 are correct

b.

1 and 2 are correct

c.

1 and 3 are correct

d.

2 and 4 are correct

Question number: 413

» Electrostatics » Electric Potential

Assertion-Reason▾

Assertion (Ꭺ)

A bird perches on a high power line and nothing happens to the bird.

Reason (Ꭱ)

The level of bird is very high from the ground.

Choices

Choice (4) Response

a.

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

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is true but Ꭱ is false

d.

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

Question number: 414

» Electrostatics » Capacitors

MCQ▾

Question

A capacitor of capacity C 1 is charged up to V volt and then connected to an uncharged capacitor of capacity C 2. Then final potential difference across each will be

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 415

» Rotational Motion » Torque

MCQ▾

Question

A wheel having moment of inertia 5 kg -m 2 about its vertical axis, rotates at the rate of 60 rpm about this axis. The torque which can stop the wheel’s rotation in 1 minute would be

Choices

Choice (4) Response

a.

b.

2 π 15 N m

c.

d.

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