Which of the following is a fundamental quantity?
Length
Mass
Time
All of the above
Length, mass, and time are all examples of fundamental quantities in physics. They are independent of any other physical quantity and cannot be expressed as a combination of other quantities.
Length is a measure of distance, and it is a fundamental quantity because it is independent of other physical quantities. Mass is a measure of the amount of matter in an object, and it is also a fundamental quantity. Time is a measure of the duration of events, and it is also a fundamental quantity.
So, The correct answer is Option 4.
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