Physics questions and answers

Physics Questions and Answers

If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.

977.

Calculate the peak voltage that could be obtained from a 220 V\(_{r.m.s}\)main supply.

A.

70.7V

B.

110.0V

C.

155.6V

D.

311.1V

E.

440.0V

Correct answer is D

No explanation has been provided for this answer.

978.

Which of the following pairs is an example of translucent bodies?

A.

Cardboard and moon

B.

Clear water and glass

C.

Frosted glass and waxed paper

D.

Oiled paper and brick

E.

Wood and metal sheet

Correct answer is C

No explanation has been provided for this answer.

979.

The length of a simple pendulum is increased by a factor of four. By what factor is its period Increased?

A.

0.25

B.

0.5

C.

1.66

D.

2

E.

4

Correct answer is D

No explanation has been provided for this answer.

980.

When some ice cubes are added to a glass of warm water, the glass is cooled by a process of

A.

conduction only

B.

convection only

C.

conduction and convection

D.

conduction and radiation

E.

radiation only

Correct answer is C

No explanation has been provided for this answer.