Jamb Physics 1979 Past Questions and Answers

Question 6:

• JAMB 1979

The temperature at which the water vapour present in the air saturates the air and begins to condense is known as

A. Boiling point
B. Melting point
C. Triple point
D. Dew point
E. Critical temperature

Question 7:

• JAMB 1979

Which of the following types of waves cannot travel through a vacuum?

A. Sound waves
B. Light waves
C. Infra-red waves
D. X-radiation
E. Redio waves

Question 8:

• JAMB 1979

If in a simple pendulum experiment the length of the inextensible string is increased by a factor of four, its period is increased by a factor of

A. 4
B. \(\frac{\pi}{2}\)
C. \(\frac{1}{4}\)
D. 2\(\pi\)
E. 2

Question 9:

• JAMB 1979

In what range of temperature is the expansion of water anomalous?

A. +208^oC to +212^oC
B. -80^oC + -76^oC
C. -4^oC to 0^oC
D. +96^oC to +100^oC
E. 0^oC to +4^oC

Question 10:

• JAMB 1979

When the vapour of a substance is in equilibrium with its own liquid, it is said to be

A. Gaseous
B. Unsaturated
C. Liquefied
D. Diffused
E. Saturated