Advertisements
Advertisements
प्रश्न
Give reasons for the following:
In cold countries, water pipes burst in winter.
उत्तर
In cold countries water pipes burst in winter because the water has maximum density at 4°C and, due to anomalous expansion of water, it expands when the water is cooled to a temperature below 4°C
APPEARS IN
संबंधित प्रश्न
Two identical rods of copper are heated to different temperatures — one by 5°C and the other by 10°C. Which rod will expand more?
Describe an experiment to showthat air expands on heating.
100 ml of each of the following liquid is heated from 10°C to 50°C. Which will expand more : (a) water (b) benzene (c) alcohol?
An iron washer is heated State the effect on its density.
An iron washer is heated. State the effect on its internal diameter.
Give scientific reason.
The telephone wires which sag in summer become straight in winter.
Define the following term:
Coefficient of superficial expansion
Define the following term:
Coefficient of cubical expansion
Solids ______ on heating and ______ on cooling.
