Question

If $\alpha ,\beta$ and $\gamma$ coefficients of linear,superficial and volume expansion respectively, then:

• A. $\frac{\beta }{\alpha }=\frac{1}{2}$
• B. $\frac{\beta }{\gamma }=\frac{2}{3}$
• C. $\frac{\gamma }{\alpha }=\frac{3}{2}$
• D. $\frac{\beta }{\alpha }=\frac{\gamma }{\beta }$

Answer 1

The correct option is B $\frac{\beta }{\gamma }=\frac{2}{3}$

We know that,

$\beta =2\alpha$ and $\gamma =3\alpha$

Comparing the two coefficients,

$\therefore \frac{\beta }{\gamma }=\frac{2\alpha }{3\alpha }=\frac{2}{3}$