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Get Answers to all your Questions
What is the definition of fundamental quantity in physics?
A quantity that can be derived from other physical quantities through mathematical formulas.
A quantity that can be measured directly and is used as a basis for defining other physical quantities.
A quantity that describes the characteristics of matter, such as density or mass.
A quantity that can be expressed using both metric and imperial units.
Answers (1)
Fundamental quantities are those physical quantities that are independent and cannot be defined in terms of other physical quantities. These quantities are used as a basis for defining other physical quantities in terms of them. The seven fundamental quantities recognized in the International System of Units (SI) are:
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Length
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Mass
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Time
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Electric current
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Temperature
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Amount of substance
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Luminous intensity
Quantities that can be derived from these fundamental quantities through mathematical formulas are called derived quantities. For example, speed is a derived quantity because it is calculated as the ratio of distance (a fundamental quantity) to time (another fundamental quantity).
So, The correct answer is Option 2.
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