Q.

Match List I with List II

  List I   List II
A. Torque I. ML–2T–2
B. Stress II. ML2T–2
C, Pressure gradient III. ML–1T–1
D. Coefficient of viscosity IV. ML–1T–2

Choose the correct answer from the options given below:         [2023]

1 A – II, B – I, C – IV, D – III  
2 A – II, B – IV, C – I, D – III  
3 A – III, B – IV, C – I, D – II  
4 A – IV, B – II, C – III, D – I  

Ans.

(2)

A.  Torque ⇒τ→=r→×F→

       [τ]=[L][MLT–2] ⇒ ML2T–2

B.  Stress = FA ⇒ MLT–2L2

       [Stress] = ML–1T–2

C.  Pressure gradient = △P△X

       ⇒ [F/A][L]=MLT–2L3 ⇒ ML–2T–2

D.  Coefficient of viscosity ⇒ F=6πηrv

       MLT–2=[η]L2T–1

       [η]=ML–1T–1