Coefficient of superficial expansion of solid is 2× 10-5/° C . Its coefficient of linear expansion is:

Question

Coefficient of superficial expansion of solid is 2× 10-5/° C . Its coefficient of linear expansion is: (A)  4× 10-5/° C  (B)  3× 10-5/° C  (C)  2× 10-5/° C  (D)  1× 10-5/° C

Tardigrade Admin · Accepted Answer

Coefficient of superficial expansion of solid is 2 × 10-5 / ° C. Its coefficient of linear expansion α =(β/2)=(2 × 10-5/2) =1 × 10-5 / ° C .

Q. Coefficient of superficial expansion of solid is $2 \times 1 0^{- 5} /^{\circ} C$ . Its coefficient of linear expansion is:

$4 \times 1 0^{- 5} /^{\circ} C$

$3 \times 1 0^{- 5} /^{\circ} C$

$2 \times 1 0^{- 5} /^{\circ} C$

$1 \times 1 0^{- 5} /^{\circ} C$

Coefficient of superficial expansion of solid is $2 \times 1 0^{- 5} /^{\circ} C$ . Its coefficient of linear
expansion $α = \frac{β}{2} = \frac{2 \times 1 0 ^{- 5}}{2}$
$= 1 \times 1 0^{- 5} /^{\circ} C .$

Q. Coefficient of superficial expansion of solid is 2×10−5/∘C . Its coefficient of linear expansion is:

4×10−5/∘C

3×10−5/∘C

2×10−5/∘C

1×10−5/∘C