Units & Dimensions

JEE Main level, single correct, medium

98 of 149

Question 98 of 149

Match List - I with List - II. List - I List - II a Torque i MLT−1{MLT}^{-1} b Impulse ii MT−2{MT}^{-2} c Tension iii ML2T−2{ML}^{2}{T}^{-2} d Surface Tension iv MLT−2{MLT}^{-2} Choose the most appropriate answer from the option given below :

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Answer: (B) (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

The torque is defined as, τ=⊥rFsin⁡θ=ML2T−2\tau =\perp rF\sin \theta ={ML}^{2}{T}^{-2}, the formula of impulse, I=∆p=MLT−1I=∆p={MLT}^{-1} and tension, T=MLT−2T={MLT}^{-2} and the formula of surface tension is defined as force per unit length.s=Fl=MLT−2L=MT−2s=\dfrac{F}{l}=\dfrac{ML{T}^{-2}}{L}=M{T}^{-2}.

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