Question

Expansion due to heat has its merits and demerits.give two instances of each to explain the statement

Answer 1

Answer:

hello friend here's your answer...

DISADVANTAGES OF THERMAL EXPANSION OF SOLIDS..

1) changing of shape and dimensions of objects such as doors..

2) wall collapsing due to bulging..

3) cracking of glass tumbler due to heating..

4) bursting of metal pipes carrying hot water or steam...

advantages

Sometimes it is difficult to remove stopper of bottle. ...

The understanding of the basic concept is highly useful in fixing iron rim with the wooden wheel.

We know that rivets are very simple useful tool which is used to hold the steel plates together.