Question

Three identical footballs are respectively filled with nitrogen, hydrogen and helium at same pressure. If the leaking of the gas occurs with time from the filling hole, then the ratio of the rate of leaking of gases from three footballs under identical conditions (in equal time interval) is :

• A. $( 1 : \sqrt { 14 } : \sqrt { 7 } )$
• B. $( \sqrt { 14 } : \sqrt { 7 } : 1 )$
• C. $( \sqrt { 14 } : 1 : \sqrt { 7 } )$
• D. $( 1 : \sqrt { 7 } : \sqrt { 14 } )$

Answer 1

Answer: (A)

$( 1 : \sqrt { 14 } : \sqrt { 7 } )$

Answer 2