Question

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Shear stress is a type of normal stress that acts in a direction perpendicular to the cut surface of any object.
Reason (R) : Shear stress is the one that acts parallel or tangential to the surface.
In the light of the above statements, choose the most appropriate answer from the options given below :

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

Stress types:
• Normal stress → perpendicular to surface
• Shear stress → parallel to surface Examples:
• Tension/compression → normal stress
• Cutting action → shear stress

Answer 1

The Correct Option is D