Physics Past Questions and Answers

Two liquids X and Y having the same mass are supplied with the same quantity of heat. If the temperature rise in X is twice that of Y, the ratio of specific heat capacity of X to that of Y is

A 2:1
B 1:2
C 4:1
D 1:4

Question 1757:

Food cook quicker in salt water than in pure water because of the effect of

A Dissolved substances on the boiling point
B Atmospheric pressure on the boiling point
C Food nutrients on the thermal energy
D Salts on the thermal conductivity of water

Question 1758:

Steam from boiling water causes more damage on the skin than does boiling water because

A Water has a high specific heat
B Steam has latent heat of fusion
C The steam is at a highter temperature than the water
D Steam brings heat more easily by convection

Question 1759:

What will happen to the boiling point of pure water when it is heated in a place 30m below sea level?

A It will be more than 100 oC
B It will be last than 100 oC
C It will still be at 100 oC
D It will be fluctuating

Question 1760:

The rise or fall of a liquid in a narrow tube is because of the

A Viscosity of the liquid
B Surface tension of the liquid
C Friction between the walls of the tube and the liquid
D Osmotic pressure of the liquid