Question

2. Short Answer Type:
1. Define coefficient of linear expansion. 2. Name the factors on which the increase in length of a
rod, when heated, depend? 3. Define coefficient of superficial (or surface) expansion.
5 What do you mean by apparent expansion of liquid?​

Answer 1

Answer:

1) "The rate of change of unit length per unit degree change in temperature” Assuming the effect of pressure is negligible

2) The amount by which it expands depends on three factors: its original length, the temperature change, and the thermal (heat) properties of the metal itself.

3) Coefficient of superficial expansion. The amount by which unit area of a material increases when the temperature is raised by one degree is called the coefficient of superficial (i.e. area) expansion and is represented by β (Greek beta).

4) Definition of apparent expansion. : the thermal expansion of a liquid as measured in a graduated container without allowance for the expansion of the container.

Explanation:

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