Question 131:

• JAMB 1980

If the volume of a fixed mass of a gas is kept constant, the pressure of the gas

A. Is inversely proprotional to its centigrade temperature
B. Is inversely proportional to its absolute temperature
C. Is directly proportional to its centigrade temperature
D. Is directly proportional to its absolute temperature
E. Remains constant also

Question 132:

• JAMB 1980

Which of the following statements about sound is NOT true?

A. Sound is a longitudinal wave
B. Sound can be reflected and refracted like light
C. Sound travels through a vacuum
D. Sound moves faster in a steel wire than in air
E. Sound can ony be produced by vibrating objects

Question 133:

• JAMB 1980

In a compound microscope

A. There is only one lens
B. The objective lens have a shorter focal length than the eyepiece which is convex
C. The objective lens has a longer focal length than the eyepiece which is convex
D. The objective lens has a shorter focal length than the eyepiece which is concave
E. The objective and the eyepiece are both convex and have the same focal length

Question 134:

• JAMB 1980

In sunlight, a blue flower looks blue because we see the flower by the light it

A. Recieves from our eye
B. Disperses
C. Absorbs
D. Refracts
E. Reflects

Question 135:

• JAMB 1980

High Tension(H.T.) transmission means

A. To transmit a given amount of power, the tension in the conducting wire must be high
B. Heat is not lost when current is passed through a conductor
C. Heat is gained when a given power is transmitted
D. A big transformer is required to transmit power
E. Trasmission of power at low current and high voltage