Post Utme Physics Past Questions and Answers

Question 1276:

The resistance of a wire depends on ____________

A. The length of the wire
B. The diameter of the wire
C. The temperature of the wire
D. The resistivity of the wire
E. All of the above

Question 1277:

Which of these is not contained in a dry cell?

A. Carbon rod
B. Paste of magnesium dioxide
C. Paste of ammonium chloride
D. Zinc case
E. Copper rod

Question 1278:

When a yellow card is observed through a blue glass, the card would appear as ____________

A. Black
B. Green
C. Red
D. White
E. Purple

Question 1279:

A device that converts sound energy into electrical energy is ____________

A. The horn of a motor car
B. An AC generator
C. A microphone
D. Telephone earpiece
E. A loud speaker

Question 1280:

Radio waves have velocity of \(3 \times 10^{8} ms ^{-1}\). If a radio station sends out a broadcast on a frequency \(800 KHz\), what is the wavelength of the broadcast?

A. \(375.0 m\)
B. \(267.0 m \)
C. \(240.0 m\)
D. \(37.5 m\)
E. \(26.7 m\)