• # question_answer The densities of two gases are in the ratio of 1 : 16. The ratio of their rates of diffusion is               [CPMT 1995] A)                 16 : 1      B)                 4 : 1 C)                 1 : 4        D)                 1 : 16

$\frac{{{d}_{1}}}{{{d}_{2}}}=\frac{1}{16}$ ; $\frac{{{r}_{1}}}{{{r}_{2}}}=\sqrt{\frac{{{d}_{2}}}{{{d}_{1}}}}=\sqrt{16}=\frac{4}{1}$