Physical Properties of Matter

With reference to the mechanical properties of solids, which of the following statement/s is/are correct? (1) The Young's Modulus of rubber is greater than that of steel. (2) The stretching of a coil is determined by its Shear Modulus.

The rain drops are spherical because –

Oil spreads on water surface because –

Pressure inside a soap bubble is –

What happens when some charge is placed on a soap bubble?

While travelling by plane, the ink of the pen starts to come out–

A sudden fall in barometer reading indicates that the weather will be :

A liquid is flowing in a streamlined manner through a cylindrical pipe. Along with a section containing the axis of the pipe, the flow profile will be : 

Increasing the amount of a substance does not change its–

What changes will the volume of water show if the temperature is lowered from $9^{\circ}\mathrm{C}$ to $3^{\circ}\mathrm{C}$ :

At which temperature is the density of water maximum?

In cold weather, aquatic animals survive even when water at the top layer of the lake freezes into ice because –

Why does an iron nail float on mercury while it sinks in water?

A needle sinks in water whereas a ship made of iron floats on it because :

An iron needle floats on the surface of water due to –

While lifting a bucket of water from a well, we feel that the bucket :

While floating in a sea what part of an iceberg is above the surface of the sea?

Why is it easier to swim in the sea than in a river?

When a ship enters a sea from a river, what happens?