Question

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Product of Pressure (P) and time (t) has the same dimension as that of coefficient of viscosity.
Reason R : Coefficient of viscosity
$= \frac{Force}{Velocity ∼ gradient}$

Choose the correct answer from the options given below.

• A. Both A and R true, and R is correct explanation of A.
• B. Both A and R are true but R is NOT the correct explanation of A.
• C. A is true but R is false.
• D. A is false but R is true.

Answer 1

Answer: (C)

A is true but R is false.

Answer 2

The correct answer is (C) : A is true but R is false.
$[ Pressure ] [ Time ] = [ \frac{Force} {Area} ] [ \frac{Distance} {Velocity} ]$
$[ Coefficient ∼ of ∼ viscosity ] = [ \frac{Force }{Area} ] [ \frac{Distance }{Velocity} ]$
Statement 'A' is true
But statement R is false are coefficient of viscosity
= $\frac{Force} {Area × {Velocity} {gradient}}$