NEET Physics Question - Unit And Dimensions

Assertion (A): Only like quantities can be added or subtracted from each other.

Reason (R): Velocity can be subtracted from the velocity gradient.

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

Solution:

By the principle of homogeneity, only physical quantities with identical dimensions can be added or subtracted. Velocity and velocity gradient have different dimensions, hence they cannot be subtracted.

Rankers Physics

Addition of like quantities

Solution:

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