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.
both the pen and the cloth are magnetized
the pen is magnetized but the cloth is not
the pen is charged while the cloth is magnetized
both the pen and the cloth are charged
Correct answer is D
They are all charged either positively or negatively
Which of the following has the lowest internal resistance when new?
leclanche cell
Daniel cell
Accumulator
Torch battery
Correct answer is C
No explanation has been provided for this answer.
Green, yellow, green
Red, yellow, red
black, yellow, black
Green, white, green
Correct answer is A
No explanation has been provided for this answer.
In a projection lantern of focal length f, the object distance u, is such that
u > 2f > f
u < f < 2f
u = f < 2f
f < u < 2f
Correct answer is D
No explanation has been provided for this answer.
5cm
10cm
30cm
40cm
Correct answer is B
V = -2u
F = \(\frac{uv}{u + v}\)
20 = \(\frac{uv - 2u}{u - 2u}\)
u = 10cm