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.
Which of the following electromagnetic wave can be detected by its heating effect?
ultraviolet radiation
x-rays
gamma rays
infrared radiation
Correct answer is D
No explanation has been provided for this answer.
N280.00
N28.00
N7.20
N1.44
Correct answer is B
P = (80 x 5 + 100 x 3)8
= 5600W
Cost = \(\frac{5600}{1000} \times 5 = N28\)
A bulb marked 240V, 40W is used for 30 minutes. Calculate the heat generated
320J
400J
10800J
72000J
Correct answer is D
W = P x t
= 40 x 30 x 60
= 72000J
Which of the following operations does not represent an action of a force field?
falling of a mango fruit from the tree
picking of nails using a bar magnet
repulsion of two like charges
pushing of a wheel-barrow on a level gound
Correct answer is D
No explanation has been provided for this answer.
Which of the following components is used for storing electric charges?
inductor
resistor
capacitor
electrometer
Correct answer is C
No explanation has been provided for this answer.