Question

Does the change in volume of a body when its temperature is raised depend on whether the body has cavities inside, other things being equal?

• A. may be
• B. may be not
• C. depends upon shape
• D. no

Answer 1

The correct option is D no

$\begin{array}{c}\text{We Know}\\ \begin{array}{c}{V}_{\text{final}}=V_{\text{inital}}(1+\beta \Delta T)\\ \beta =\text{Bulk modulus of fluid}\end{array}\\ \begin{array}{c}{V}_f-v_i=V\beta \Delta T\end{array}\end{array}$

$\begin{array}{c}\text{Change in volume only depend on}\\ \text{(1) initial volume}\\ \text{(11)}\beta \\ \text{(i11)}△T\text{(change in temperature)}\\ \text{S0, it does not depend on whetterer there is cavityornot}\end{array}$