Physics - Fluid Question with Solution | TestHub

Let the$M_1$is the mass of the body. Apparent weight of the body in air

$=$Apparent weight of standard weight in air

$\therefore$Actual weight - Upthrust due to displaced air

$\Rightarrow M_{1}g-\frac{M_1}{d_1}dg=Mg-\frac{M}{d_2}dg$

$M_{1}g\left(1-\frac{d}{d_1}\right)=Mg\left(1-\frac{d}{d_2}\right)$

$\therefore M_1=\frac{M\left(1-\frac{d}{d_2}\right)}{\left(1-\frac{d}{d_1}\right)}$