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Concepts Of Physics MCQ Edition [Volume 1]
Exam
Concepts Of Physics MCQ Edition [Volume 1]
Subject
Physics
Chapter
Introduction to Physics

Concepts Of Physics MCQ Edition [Volume 1] · Physics · Introduction to Physics

Which of the following sets of physical quantities cannot be taken...

Which of the following sets of physical quantities cannot be taken as fundamental quantities in any system of units?

Options

  1. Alength, mass and velocity
  2. Blength, time and mass
  3. Clength, time and velocity
  4. Dmass, time and velocity

Correct answer

C. length, time and velocity

Step-by-step solution

Fundamental quantities in any system of units must be independent of each other, meaning no quantity in the set can be derived from the other quantities in the same set.

In the set containing length, time and velocity, velocity can be expressed as the ratio of length to time (v=LTv = \dfrac{L}{T}).

Since velocity is not independent of length and time, this set cannot be chosen as a set of fundamental quantities.

In all other given sets, the three quantities are mutually independent.
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