Physics-Viscosity

NEET Physics Viscosity Assertion Reason Question

Type: Assertion Reason-assertion-Medium-Class 11

Assertion (A): Thick liquids generally have higher viscosity than thin liquids. | Reason (R): Viscosity is the ratio of shearing stress to strain rate.

A

Both A and R are true, and R is the 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.

Correct Answer

Option A

Detailed Explanation

The NCERT context explains that thick liquids like coal tar and blood are more viscous than thin liquids like water and alcohol. It also defines viscosity as the ratio of shearing stress to strain rate, which accounts for the observed difference.

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