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.
220\(^o\)
200\(^o\)
210\(^o\)
180\(^o\)
Correct answer is D
No explanation has been provided for this answer.
I and III only
I and II only
II and IIII only
I, II and III only
Correct answer is B
No explanation has been provided for this answer.
When a sound wave passes from air into water its
speed and frequency increases but its wavelength remains the same
speed and wavelength increases but its frequency remains the same
speed decreases
speed increases but its frequency and wavelength decreases
Correct answer is B
No explanation has been provided for this answer.
5.16cm
5.165cm
5.0cm
5.160cm
Correct answer is A
No explanation has been provided for this answer.
2
\(\frac{3}{2}\)
\(\frac{2}{3}\)
3
Correct answer is D
Relative density of solid
\(\frac{\text{weight of solid}}{\text{weight of an equal volume of water}}\)
= \(\frac{4.8}{4.8 - 2.8}\)
= \(\frac{4.8}{2}\) = 2.4
Relative density of liquid
= \(\frac{\text{Weight of liquid kerosine}}{\text{Weight of an equal volume of water}}\)
= \(\frac{4.8 - 3.2}{4.8 - 2.8}\) = \(\frac{1.6}{2}\) = 0.8
= \(\frac{\text{Ratio of relative density of solid}}{\text{Relative density of Kerosine}}\)
= \(\frac{\text{density of solid}}{\text{density of Kerosine}}\)
= \(\frac{2.4}{0.8}\)
= 3