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.
an electron
a \(\beta\)-particle
an \(\alpha\)-particle
a proton
an atom
Correct answer is D
No explanation has been provided for this answer.
a little above half of its initial energy
a little below half of its initial energy
a half of its initial energy
a little above its initial energy
a little below its initial energy
Correct answer is C
Energy for complete distance is twice the energy for half the distance
On which of the following is the operation of a moving coil galvanometer based?
Magnetic effect of electric current
Electromagnetic induction
Chemical reaction produced by electricity
Force on current carrying conductor in a magnetic field
Electrical energy and power
Correct answer is D
No explanation has been provided for this answer.
4 x 108ms-1
2.25 x 108ms-1
\(\frac{4}{9}\) x 108ms-1
2.25 x 102ms-1
4.33 x 108ms-1
Correct answer is B
Air to water = \(\frac{\text{speed in air}}{\text{speed in water}}\)
\(\frac{4}{3}\) = \(\frac{3 \times 10^8}{V}\)
4V = 3(3 x 108)
V = \(\frac{3(3 \times 10^8)}{4}\)
V = 2.25 x 108ms-1
120J
60Jg-1
120Jg-1
1500J
1500Jg-1
Correct answer is C
Heat energy = Electrical energy
mL = I2RT
5 x L = 2 x 2 x 5 x 30
L = 120Jg-1