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.

1,091.

The phenomenon of photoelectric effect is NOT used in

A.

automatic doors

B.

bimetallic strip thermometers

C.

light meters in cameras

D.

setting off burglar alarms

E.

sound production from film tracks.

Correct answer is B

No explanation has been provided for this answer.

1,092.

The silvered walls of a vacuum flask minimise loss of heat due to

A.

conduction and convection

B.

conduction only

C.

convection and radiation

D.

convection only

E.

radiation only

Correct answer is E

No explanation has been provided for this answer.

1,095.

It is NOT possible to determine exactly and simultaneously the position and momentum of a particle. This statement is known as the

A.

Crompton effect

B.

de Broglie’s laws

C.

Frank-Hertz experimental law

D.

Heisenberg’s uncertainly principle

E.

wave-particle paradox

Correct answer is D

No explanation has been provided for this answer.