Question

describe pullingers method to determine coefficient of linear expansion of a rod​

Answer 1

Explanation:

Linear thermal expansion is ΔL = αLΔT, where ΔL is the change in length L, ΔT is the change in temperature, and α is the coefficient of linear expansion, which varies slightly with temperature. The change in area due to thermal expansion is ΔA = 2αAΔT, where ΔA is the change in area.

Answer 2

Answer:

this is correct answer

Explanation:

your answer is here hope it help, mark me as brainlist