Coefficient of superficial expansion of a solid is 2 × 10^{-5} {°C^{-1}} . It's coefficient

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10-1.Thermometry, Thermal Expansion and Calorimetry

easy

The coefficient of superficial expansion of a solid is $2 \times 10^{-5} {°C^{-1}}$. It's coefficient of linear expansion is

A

$4 \times 10^{-5} {°C^{-1}}$

B

$3 \times 10^{-5} {°C^{-1}}$

C

$2 \times 10^{-5} {°C^{-1}}$

D

$1 \times 10^{-5} {°C^{-1}}$

Solution

(d) $\alpha = \frac{\beta }{2} = \frac{2 \times 10^{ – 5}}{2} = {10^{ – 5}} {°C^{-1}}$

Standard 11

Physics

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