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.

241.

A metallic sphere is heated from 27°C to 200°C Without change of state. Which of the following  changes would have resulted from the heating?

 

A.

No changes occur in its volume and density

B.

Its volume increases and its density increases

C.

Its volume increases and its density decrease

D.

Its volume increases without a change in density

Correct answer is C

No explanation has been provided for this answer.

244.

The distance between a node and its adjacent antinode of a transverse wave is equal to? 

A.

half of the wavelength

B.

the wavelength

C.

thrice the wavelength

D.

quarter of the wavelength

Correct answer is D

No explanation has been provided for this answer.

245.

Which of the following statements about the molecules of solids and liquids is correct? They both

A.

have weak attraction.

B.

have wide separations.

C.

exhibit random motion.

D.

exhibit vibratory motion.

Correct answer is D

No explanation has been provided for this answer.