Question

To decide dimension of physical quantity, the unit of time is expressed by​

Answer 1

Answer:

The dimension of physical quantity may be defined as the number of times the fundamental units of mass, length and time appear in the physical quantity

Explanation:

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Answer 2

• From the given question the correct answer is T.
• As we know that the unit of mass is represented by M.
• The unit of length is expressed by L.
• The unit of time is expressed by​ T to decide the dimension of a physical quantity.
• So that [Mass] = [M] [Length] = [L] are the dimensions of fundamental quantities.
• The physical quantity is expressed by five fundamental dimensions.
• i.e. charge, time (T), temperature (θ), length (L ), mass ( M).