With rise in temperature, density of a given body changes according to one of the following relations

Options

A. `rho=rho_0[1+gamma d theta]`
B. `rho=rho_0[1-gamma d theta]`
C. `rho=rho_0 gamma d theta`
D. `rho=rho_0 // gamma d theta`

Answer

B

Explanation

`(rho)/(rho_0)=(m//V)/(m//V_0)=(V_0)/(V)=(V_0)/(V_0(1+gamma Delta theta)) = (1)/(1+gamma Delta theta) implies rho=rho_0(1-gamma Delta theta)`