What type of mechanical waves do you expect to exist in (a) vacuum (b) air (c) inside water (d) rock (e) on the surface of a liquid.

The types of mechanical wave we expect the exist in vacuum is

What do you understand by the term surface of a liquid?

What kind of mechanical waves exist (a) Inside water? (b) On the surface of water?

What type of graph do you expect between (i) L and T and (ii) L and T^2 ?

The top of a lake is frozen. Air in contact is at - 15°C. What do you expect the maximum temperature of water (i) in contact with the lower surface of ice an (ii) at the bottom of the lake ?

What type of forces do exist between the molecules of alkanes in liquid and solid states ?

What is the effect of temperature on : (a) Density , (b) Surface tension , (c ) Viscosity and (d) Vapour pressure of a liquid ?

How many of the following effect the vapour pressure developed in a container ? (a) nature of liquid , (b) surface area of the liquid , (c) temperature , (d) quantity of the liquid

A hollow metallic sphere, the outer and inner diameters of which are d_(1) and d_(2) . floats on the surface of a liquid. The density of metal is rho_(1) and the density of liquid is rho_(2) . What weight must be added inside the sphere in order for it to float below the level of liquid?

A hollow metallic sphere, the outer and inner diameters of which are d_(1) and d_(2) . floats on the surface of a liquid. The density of metal is rho_(1) and the density of liquid is rho_(2) . What weight must be added inside the sphere in order for it to float below the level of liquid?