BITSAT (Birla Institute of Technology & Science Admission Test) Physics: Questions 320 - 325 of 382

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Question 320

Question

MCQ▾

When we touch the terminal of a high voltage capacitor, even after a high voltage has been cut – off. Then the capacitor has the tendency to –

Choices

Choice (4)Response

a.

Affect dangerously

b.

Discharge energy

c.

Restore energy

d.

Both a. and b. are correct

Question 321

Question

MCQ▾

An ideal gas heat engine operates in Carnot cycle between and . It absorbs of heat at higher temperature. Amount of heat converted to work is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question 322

Question

MCQ▾

Two springs of spring constants and respectively are stretched with the same force. They will have the potential energies in the ratio of –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 323

Question

MCQ▾

In a room where the temperature is a body cools from to in . The time taken by the body to cool from to will be –

Choices

Choice (4)Response

a.

4

b.

5

c.

8

d.

6

Question 324

Question

MCQ▾

Speed of a ball of radius in a viscous liquid is . Then the speed of radius of ball in the same liquid is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 325

Question

MCQ▾

The moment of inertia of a regular circular disc of mass and radius about the axis perpendicular to the plane of the disc and passing through its centre is –

Choices

Choice (4)Response

a.

b.

c.

d.

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