The relationship between $\;T_{3} \; , T_{2} \; , T_{1} \;$ is -

Question

$(a)\;T_{1} >T_{2} >T_{3}\qquad(b)\;T_{3} >T_{2} >T_{1}\qquad(c)\;T_{1}=T_{2}=T_{3}\qquad(d)\;cant\;be\;determined$