TS EAMCET 4-Aug-2021 Shift 1 Question Paper

As we know that,
α=‌

∆l

l0∆T

where, α= coefficient of linear expansion,
∆l= change in length
l0= initial length
and ∆T= change in temperature.
As we know that, β=‌

∆A

A0∆T

=‌

2∆l

l0∆T

where, β= real expansion / areal expansion,
∆A= change in area
and A0= initial area.
∴‌‌‌

α

β

=‌

‌ ∆l l0∆T

2‌ ∆l l0∆T

=‌

1

2

=0.5