Two rain drops falling through air have radii in the ratio $1: 2$. They will have terminal velocity in the…

Two rain drops falling through air have radii in the ratio $1: 2$. They will have terminal velocity in the ratio
  1. $1: 2$
  2. $4: 1$
  3. $1: 4$
  4. $2: 1$

Solution

$\mathrm{V} \propto \mathrm{r}^{2}$ $\frac{\mathrm{V}_{1}}{\mathrm{~V}}=\left(\frac{1}{2}\right)^{2}=\frac{1}{4}$

Asked in: MHT CET 2020 (12 Oct Shift 1)

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