Class 11 NEET Physics Physical World, Units and Measurements

Impulse = Force × time
=[MLT−2][T]=[MLT−1]
‌Surface tension ‌=‌

‌ Force ‌

‌ length ‌

=‌

[MLT−2]

[L]

=[ML0T−2]
Angular momentum = Moment of inertia × angular velocity
=[ML2][T−1]=[ML2T−1]
Work = Force × distance =[MLT−2][L]
‌‌=[ML2T−2]
Energy = [ML2T−2]
Torque = Force × distance =[MLT−2][L]
=[ML2T−2]
Young's modulus =‌

‌ Force / Area ‌

‌ Change in length / original length ‌

=‌

[MLT−2]∕[L2]

[L]∕[L]

=[ML−1T−2]
Hence, among the given pair of physical quantities work and torque have the same dimensions [ML2T−2]