Advertisements
Advertisements
प्रश्न
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
Advertisements
उत्तर
The diagram is to show how the given strip bends and cools. Due to heating, the copper bends more than invar due to the high coefficient of linear expansion of copper.
APPEARS IN
संबंधित प्रश्न
The increase in length of a metal rod depends on
Two iron rods – one 10 m long and the other 5 m long, are heated to the same rise in temperature. Which will expand more?
Why is one end of a steel girder in a bridge kept on rollers instead of fixing it in pillar?
Give scientific reason.
An ordinary glass bottle cracks when boiling water is poured into it, but a borosil glass bottle does not.
What is meant by thermal expansion?
Define the following term:
Coefficient of superficial expansion
Give reasons for the following:
In cold countries, water pipes burst in winter.
Complete the following sentence:
When ice melts its volume ______ and density _______.
