Question

3
Calculate the increase in the
length of an aluminum bar 2 m
long when heated from 0°C to
20°C. If the thermal coefficient of
linear expansion of aluminum is
2.5 x 10K
(0.1 cm) accurding to phy
​

Answer 1

Answer:

Explanation:

Expansion of rod =coefficientofexpansion×L×ΔT

=2.5×10  

−5

×1×(100−20)=0.002m=0.2cm