Question

11. Assertion (A): A physical quantity equated with dimensional equation is called
dimensional formula.
Reason (R): Dimensions of a physical quantities are the powers to which base
quantities are raised to represent the physical quantities.​

Answer 1

Explanation:

both assertion and reason are correct

Answer 2

Answer:

A) The dimensional formula is defined as the expression of the physical quantity in terms of its basic unit with proper dimensions. For example, dimensional force is F=[MLT−2] It's because the unit of Force is N(newton) or kg×m/s2.

B) In thermodynamics, [K] is the dimension for the temperature. ... The dimensions of a physical quantity are the powers to which the units of base quantities are raised to represent a derived unit of that quantity. For example, Hence the dimensions of velocity are 0 in mass, 1 in length and -1 in time.