Question

1) The dimensional formula of coefficient of viscosity is

A) [MLT-1

]

B) [M-1

L

2T

-2

]

C) [ML-1T

-1

]

D) None of these​

Answer 1

(C) [M 1 L-1 T-1 ]

Explanation:

Coefficient of viscosity (η)= Fr/

Av where F = tangential force, r

= distance between the layers , v

= velocity.

Dimensional Formula of Force =

[M 1 L1 T -2]

Dimensional Formula of Area=

[M 0 L2 T 0]

Dimensional Formula of

distance= [M 0 L 1 T 0]

Dimensional Formula of velocity=

[M 0 L1 T -1]

Putting these values in above

equation we get,

[η]= [M 1 L 1 T-2 ][M 0 L 1 T0 ] /

[M 0 L2 T0 ] [M 0 L 1 T-1 ]

=[M 1 L-1 T-1 ]

Answer 2

Answer:

bbsbebbe r enr r rbbd de ed b