Question

E. State whether the following statements
are true or false. If false, rewrite the
correct form of statements.
1. All solids expand equally when heated to
same rise in temperature.
2. Coefficient of superficial expansion of
a solid is twice the linear expansion
coefficient of the same solid.
3. Telephone wires are intentionally kept
slightly loose between the poles at the time
of laying them.
4. A small gap is left between two successive rail to make room for thermal expansion
5. expansion coefficient of pyrex is much more than that of ordinary glass
6. thermal expansion of liquids is more than of solid
7. different gases expand differently when heated to a given rise in temperature
8. Mercury expands on heating but alcohol contract on heating ​

Answer 1

Answer:

1.False

All solids expand unequally when heated to

same rise in temperature.

2true

3 true

4 true

5 expansion coefficient of pyrex is not more than that of ordinary glass

6 true

7 true

8. Mercury expands on heating and alcohol expand on heating

Answer 2

Answer:

8. false

mercury expands on heating as well as alcohol expands on heating

And other answers in the pictures