Angle and strain dimensions – Rankers Physics

Dimensions: Practice Problem & Solution

Assertion (A): Angle and strain are dimensionless. Reason (R): Angle and strain have no unit.  
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(A) is true but (R) is false
Both (A) and (R) are false

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Dimensions. Understanding the underlying formula is key to arriving at the correct answer below:

Both angle and strain are ratios of like quantities and are dimensionless. However, angle has a unit (radian), so R is false.

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