Neco Physics 2002 Past Questions and Answers

Question 16:

• NECO 2002

The wavelength of a stationary wave is 36.0cm. What is the distance between a node and the next anti-node?

A. 6.0cm
B. 9.0cm
C. 18.0cm
D. 360cm
E. 72.0cm

Question 17:

• NECO 2002

An a.c. generator can be converted into a d.c. generator by replacing ____________

A. The slip rings with split-ring commutators
B. The slip rings with armatures
C. The split-rings with slip rings
D. The split-rings with brushes
E. The brushes with slip-ring commutators.

Question 18:

• NECO 2002

It is NOT possible to determine exactly and simultaneously the position and momentum of a particle. This statement is known as the ____________

A. Crompton effect
B. De Broglie’s laws
C. Frank-Hertz experimental law
D. Heisenberg’s uncertainly principle
E. Wave-particle paradox

Question 19:

• NECO 2002

An air bubble of volume 4cm³ is formed 20m under water. What will be its volume when it rises to just below the surface of the water if the atmospheric pressure is equivalent to a height of 10cm of water?

A. 2cm³
B. 4cm³
C. 6cm³
D. 8cm³
E. 12cm³

Question 20:

• NECO 2002

A platinum-resistance thermometer has a resistance of 10 ω at 0°C and 18 ω at 100°C. Assuming that resistance changes uniformly with temperature, what is the resistance of the thermometer when the temperature is 45°C?

A. 27.8
B. 17.8
C. 13.6
D. 6.4
E. 3.6