Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
2 x 10-8m
2 x 10-9m
2 x 10-7m
3 x 10-9m
2.8 x 10-8m
Correct answer is B
Mass of one oil = \(\frac{5 \times 10^{-4}}{1000}\)
= 5 x 10-4kg
Density = \(\frac{\text {mass}}{\text{area x thickness}}\)
500 = \(\frac{5 \times 10^{-7}}{\text{0.5 x thickness}}\)
thickness = 2 x 10-9m
4ms-1
10ms-1
20ms-1
50ms-1
80ms-1
Correct answer is C
F = ma
= \(\frac{m(u - v)}{t}\)
16 = \(\frac{4(v - 0)}{5}\)
v = 20ms-1
Of the following derived units, the one that is not a unit of power is
joule/second
ampere volt
ampere2volt
volts2/ohm
Correct answer is C
Power = \(\frac{Work done}{time}\) = \(Js^{-1}\)
Power = \(current \times voltage\) = \(Ampere volt\)
Power = \(\frac{voltage^{2}}{resistance}\) = \(\frac{volts^{2}}{ohm}\)
0.0378 x 10 -3kg
0.227 x 10 -3kg
0.378 x 10 -3kg
0.595 x 10 -3kg
2.268 x 10 -3kg
Correct answer is E
m = Itz
= 5 x 3600 x 0.126 x 10-6
= 2.268 x 10-3kg
1A
4A
16A
18A
36A
Correct answer is B
\(I = \frac{24}{6}\)