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AIIMS 2002
Exam
AIIMS
Year
2002
Subject
Physics
Chapter
Units and Dimensions

AIIMS 2002 · Physics · Units and Dimensions

The dimension of torque is

The dimension of torque is

Options

  1. A[MT−2]\left[\mathrm{MT}^{-2}\right]
  2. B[ML−1 T−1]\left[\mathrm{ML}^{-1} \mathrm{~T}^{-1}\right]
  3. C[ML2 T−2]\left[\mathrm{ML}^2 \mathrm{~T}^{-2}\right]
  4. D[ML3 T−3]\left[\mathrm{ML}^3 \mathrm{~T}^{-3}\right].

Correct answer

A. [MT−2]\left[\mathrm{MT}^{-2}\right]

Step-by-step solution

Torque, τ=\tau= force ×\times distance. Therefore dimension of torque = dimensions of force ×\times dimensions of distance =[MLT−2][L]=[ML2 T−2]=\left[\mathrm{MLT}^{-2}\right][\mathrm{L}]=\left[\mathrm{ML}^2 \mathrm{~T}^{-2}\right].
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