Physics 2002 Neco Past Questions and Answers

Question 46 :

• NECO 2002

If the temperature of a resistance wire is gradually increased, its resistance will ____________

A. Decrease gradually
B. First increase and then decrease
C. First increase and then remain the same
D. Increase gradually
E. Remain the same

Question 47 :

• NECO 2002

If the size of the hole of a pinhole camera is increased, the image formed becomes ____________

A. Brighter and blurred
B. Brighter and larger
C. Brighter and sharper
D. Blurred and duller
E. Blurred and larger

Question 48 :

• NECO 2002

A man stands in front f a high wall and produces a sound. If he receives the echo of the sound four seconds later, what is his distance from the wall? [The speed of sound in air is 330ms^-1]

A. 1320m
B. 660m
C. 400m
D. 330m
E. 165m