2017 - JAMB Physics Past Questions and Answers - page 4
31
A constant force of %n acts for a % seconds on a mass of 5kg initially at rest. Calculate the final momentum
A
125kgms−1
B
25kgms−1
C
15kgms−1
D
0kgms−1
32
I. Refraction II. Interference III. Diffraction Which of the above properties are common to all waves?
A
II and III only
B
I, II and III
C
I and II only
D
I and III only
33
I. Refraction II. Interference III. Diffraction Which of the above properties are common to all waves?
A
II and III only
B
I, II and III
C
I and II only
D
I and III only
34
Which of the following is correct about an electric cell?
A
Primary cell produces a large current for a long time
B
Secondary cell has a very high internal resistance
C
Primary cell has a very low internal resistance
D
Secondary cell has a very low internal resistance
35
Which of the following is a semiconductor
A
copper
B
silicon
C
plastic
D
Iron
36
Which of the following surfaces will absorbs radiant heat energy heat?
A
white
B
red
C
black
D
blue
37
It is known that a neutron exists in a light atomic nucleus
Which of the following also exists in the nucleus?
A
An electron
B
A β - particle
C
β - particle
D
proton
38
The instrument to measure the relative density of light is
A
thermometer
B
hydrometer
C
spring balance
D
beaker
39
What is the speed of a body vibrating at 50 cyclic per second
A
100 πrads\(_{−1}\)
B
200 πrads\(_{−1}\)
C
50 πrads\(_{−1}\)
D
400 πrads\(_{−1}\)
40
The action of blotting paper on ink is due to
A
diffusion
B
osmosis
C
capillarity
D
surface tension
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