Question

Distinguish between linear arial superficial expansion

Answer 1

Answer:

linear expansion is the increase only in length and superficial expansion is the increase in the area.

Explanation:

Linear expansion : Linear expansion is basically the increase in length of a material in relation to the increase of the temperature of the material. The coefficient of linear expansion is a guiding numerical expression,     which is generally different for different materials.

Superficial expansion: Expansion in area of a Laminar surface due to heating is known as superficial expansion. The coefficient of superficial expansion is defined as the ratio of increase in area to its original area for every degree increase in temperature.