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.
Vapour is said to be saturated on top of an enclosed liquid if _________
The rate of condensation is greater than that of vapourization
The rate of condensation is equal to that of vapourization
There is neither condensation nor vaporization of the liquid
The rate of condensation is less that that of vaporization
Correct answer is B
No explanation has been provided for this answer.
Which of the following does Not use magnetic effect of current to function?
Lead acid accumulator
An electric bell
A moving coil galvanometer
A telephone receiver
Correct answer is A
Lead acid accumulator does not use the magnet effect of current. It is an electrochemical cell that produces current as a result of a chemical reaction
What will happen to the pressure of a gas if its temperature is reduced to -273oC?
It will decrease
it will drop to zero
It will increase
It will remain constant
Correct answer is B
No explanation has been provided for this answer.
The relative density of a liquid is the ratio of the
Mass of water to the mass of an equal volume of liquid
Upthrust in the liquid to the upthrust in water
Density of water to the density of the liquid
Upthrust in water to the upthrust in the liquid
Correct answer is B
No explanation has been provided for this answer.
201oC
126oC
153oC
185oC
Correct answer is C
T = \(\frac{PV}{nR}\) = \(\frac{7.6 x 10^6 x 10^-3}{6 x 8.3}\)
= 153oC