Question 321:

• JAMB 1984

Which of the following is a correct explanation of the inertia of a body?

A. Ability to overcome the earth's gravity
B. Reluctance to stop moving
C. Readiness to start moving
D. Reluctance to start moving and its readiness to stop moving once it has begun to move
E. Reluctance to start moving its reluctance to stop moving once it has begun to move

Question 322:

• JAMB 1984

If a water pump at Kainji Dam is capable of lifting 1000kg of water through a vertical height of 10m in 10s, the power of the pump is [g = 10ms^-2]

A. 1.0kW
B. 10.0kW
C. 12.5kW
D. 15.0kW
E. 20.0kW

Question 323:

• JAMB 1984

What is the apparent colour of a RED SHIRT when viewed in PURE green light?

A. Red
B. Green
C. Yellow
D. Black
E. Blue

Question 324:

• JAMB 1984

The spectrum of white light consists of coloured lights arranged in the following order

A. Blue, red, green, yellow, indigo, violet, orange
B. Red, orange, yellow, green, blue, indigo, violet
C. Red, orange, yellow, indigo, green, blue, violet
D. Indigo, green, blue, violet, yellow, red, orange
E. Yellow, blue, green, violet, orange, indigo, red

Question 325:

• JAMB 1984

Cathode rays are

A. High-energy electromagnetic waves
B. Protons
C. Streams of electrons
D. Neutrons
E. Radio waves