Jamb Physics 2010 Past Questions and Answers

Question 46:

• JAMB 2010

The density of a certain oil on frying becomes 0.4 kgm\(^{-3}\) with the volume of 20m\(^{3}\). what will be its initial volume when its initial density is 0.8 kgm\(^{-3}\) assuming no loss of oil due to spillage?

A. 12m³
B. 10m³
C. 8m³
D. 5m³

Question 47:

• JAMB 2010

Heat is radiated by hot objects in the form

A. X-rays
B. Light energy
C. Infrared rays
D. Solar energy

Question 48:

• JAMB 2010

If a container is filled with ice to the brim, what happens to the level of water when the ice completely melts?

A. The level of water goes up
B. The water in the glass outflows
C. The level of water remains unchanged
D. The level of water drops

Question 49:

• JAMB 2010

The small droplet of water that forms on the grass in the early hours of the morning is

A. Hail
B. Dew
C. Fog
D. Mist

Question 50:

• JAMB 2010

A vapour is said to be saturated when

A. A dynamic equilibrium exists between liquid molecules and the vapour molecules
B. A dynamic aquilibrium exists such that more molecules return to the liquid than are living it
C. The temperature of the vapour varies
D. The vapour pressure is atmospheric