Advertisements
Advertisements
प्रश्न
What are the different types of thermal expansions?
उत्तर
There are three types of thermal expansion
(a). Linear expansion
(b). Superficial expansion
(c). Cubical expansion
APPEARS IN
संबंधित प्रश्न
Why is one end of a steel girder in a bridge kept on rollers instead of fixing it in pillar?
Describe an experiment to showthat air expands on heating.
An iron washer is heated. State the effect on its mass.
An iron washer is heated. State the effect on its external.
An iron washer is heated. State the effect on its internal diameter.
Give scientific reason.
An ordinary glass bottle cracks when boiling water is poured into it, but a borosil glass bottle does not.
Give scientific reason.
The telephone wires which sag in summer become straight in winter.
Define the following term:
Coefficient of cubical expansion
Complete the following sentence:
When ice melts its volume ______ and density _______.
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
