\[{{v}_{1}}\] and \[{{v}_{2}}\] are the velocities of sound at the same temperature in two monoatomic gases of densities \[{{\rho }_{1}}\] and \[{{\rho }_{2}}\] respectively. If \[{{\rho }_{1}}/{{\rho }_{2}}=\frac{1}{4}\] then the ratio of velocities \[{{v}_{1}}\] and \[{{v}_{2}}\] will be [KCET 2000; AIIMS 2002; AFMC 2002]

• A.   1 : 2      
• B.   4 : 1
• C.   2 : 1      
• D.   1 : 4