Solutions for Jan 18 problems

Solution. Diameter of circular hole in aluminium plate at 0° C=2.0 cm
With increase in temperature from 0° C to 100° C diameter of ring increases

using

L=L0(1+αΔT)

where L0=2.0 cm
α = 2.3 * 10-3 / ° C
ΔT=(100 -0)=100 ° C
we can find diameter at 100° C
L=2(1+2.3*10-3*100)
=2.46 cm

Popular Posts