Post Utme Physics Past Questions and Answers

Question 876:

Inside of an aeroplane, flying at a high altitude ____________

A. The pressure is the same as that outside
B. Normal atmospheric pressure is maintained by the use of air pumps
C. The pressure inside is less than the pressure outside
D. Normal humidity and partial vacuum are maintained.

Question 877:

One thousand microns is equal to ____________

A. 10°3m
B. 10°6m
C. 10°m
D. 10°!2m

Question 878:

Sound travels at the fastest speed in ____________

A. Vacuum
B. Air
C. Water
D. Steel

Question 879:

The correct unit of energy density is ____________

A. Kgm3S°?
B. Kgm"1S-2
C. Kgm?S-?
D. Kgm?S*2

Question 880:

Superconductors are substances which ____________

A. Conduct electricity at low temperature
B. Offer high resistance to the flow of current
C. Offer no resistance to the flow of current
D. Conduct electricity at high temperature