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.
The time rate of increase in velocity is called
force
momentum
acceleration
speed
Correct answer is C
No explanation has been provided for this answer.
1600
1200
200
2400
Correct answer is A
Let the count rate at zero time be N
N \(\frac{3 min}{\to}\) \(\frac{N}{2}\) \(\frac{3 min}{\to}\) \(\frac{N}{4}\)
\(\frac{N}{4}\)
= 400
N = \(\frac{400}{N/4}\) x N
= 1600
I and II
III and IV
I and III
II and IV
Correct answer is C
Examples of electromagnetic waves are radio waves, X-rays, gamma rays, light rays, etc
In which of the following diagrams is the length of the tube equal to one wavelength?
a
b
c
d
Correct answer is C
No explanation has been provided for this answer.
Which of the following instruments consumes the highest current?
|
I. Electric iron II. Television set III. Torch light IV. Immersion heater |
250v 220v 6v 110v |
1kW 110W 30W 500W |
2
I
II
III
IV
Correct answer is C
(I) I = \(\frac{P}{V} = \frac{1000}{25}\) = 4A
(II) I = \(\frac{110}{220}\) = 0.5A
(III) I = \(\frac{30}{6}\) = 5A
(IV) I = \(\frac{500}{110}\) = 4.55A