Question

A metal rod is heated increasing its temperature
by 10°C. The fractional change in its length is
1x10-4. If a plate of same metal is heated raising
its temperature by 5°C, the fractional change in
its area will be :-
(1) 1 *10-4 o
(2) 0.5 x 10-4
(3) 2 x 10-4
(4) 3 x 10-4

Answer 1

Answer:

1*10-4 is the correct answer