Advertisements
Advertisements
Question
The increase in length of a metal rod depends on
Options
the initial length of the rod only
the rise in temperature only
the material of rod only
all the above three factors.
Solution
all the above three factors.
APPEARS IN
RELATED QUESTIONS
A longer rod expands ........... than a shorter rod on being heated to the same temperature.
What do you understand by thermal expansion of a substance?
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?
A metal plate is heated. State three factors on which the increase in its area will depend.
An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into water. Explain the reason.
Water is heated from 0°C to 4°C. Will it expand?
Give reasons for the following:
In cold countries, water pipes burst in winter.
Give reason for the following
An ordinary glass bottle cracks when boiling water is poured into it, but a borosilicate glass bottle does not.
What is thermal expansion?
