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Unit for a fundamental physical quantity is
- a)defined as best of various reference standards
- b)defined as average various reference standards
- c)the smallest measurable value of the physical quantity
- d)reference standard for the physical quantity
Correct answer is option 'D'. Can you explain this answer?
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Unit for a fundamental physical quantity isa)defined as best of variou...
Unit is the reference used as the standard measurement of a physical quantity. The unit in which the fundamental quantities are measured are called fundamental unit and the units used to measure derived quantities are called derived units.
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Unit for a fundamental physical quantity isa)defined as best of variou...
Definition of a Unit for a Fundamental Physical Quantity
A unit for a fundamental physical quantity is an important concept in physics. It is defined as the reference standard for measuring a physical quantity. In other words, it is the basic building block for measuring any physical quantity.
Reference Standard for the Physical Quantity
The correct answer to the question is option 'D', which states that a unit for a fundamental physical quantity is a reference standard for the physical quantity. This means that a unit is a well-defined quantity that is used to measure the physical quantity in question.
For example, the meter is the reference standard for measuring length, and the second is the reference standard for measuring time. The kilogram is the reference standard for measuring mass, and the ampere is the reference standard for measuring electric current.
Importance of Units in Physics
Units are an essential part of physics because they provide a common language for scientists to communicate their findings. Without units, it would be impossible to compare and analyze data from different experiments. Moreover, units allow us to make accurate measurements and calculations.
For instance, if you want to measure the length of a table, you need a measuring tape calibrated in meters or feet. Similarly, if you want to calculate the speed of a car, you need the distance traveled in meters and the time taken in seconds.
Conclusion
In conclusion, a unit for a fundamental physical quantity is the reference standard for measuring that quantity. It is a crucial concept in physics that allows scientists to communicate their findings accurately and make precise measurements and calculations.
A unit for a fundamental physical quantity is an important concept in physics. It is defined as the reference standard for measuring a physical quantity. In other words, it is the basic building block for measuring any physical quantity.
Reference Standard for the Physical Quantity
The correct answer to the question is option 'D', which states that a unit for a fundamental physical quantity is a reference standard for the physical quantity. This means that a unit is a well-defined quantity that is used to measure the physical quantity in question.
For example, the meter is the reference standard for measuring length, and the second is the reference standard for measuring time. The kilogram is the reference standard for measuring mass, and the ampere is the reference standard for measuring electric current.
Importance of Units in Physics
Units are an essential part of physics because they provide a common language for scientists to communicate their findings. Without units, it would be impossible to compare and analyze data from different experiments. Moreover, units allow us to make accurate measurements and calculations.
For instance, if you want to measure the length of a table, you need a measuring tape calibrated in meters or feet. Similarly, if you want to calculate the speed of a car, you need the distance traveled in meters and the time taken in seconds.
Conclusion
In conclusion, a unit for a fundamental physical quantity is the reference standard for measuring that quantity. It is a crucial concept in physics that allows scientists to communicate their findings accurately and make precise measurements and calculations.
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Unit for a fundamental physical quantity isa)defined as best of various reference standardsb)defined as average various reference standardsc)the smallest measurable value of the physical quantityd)reference standard for the physical quantityCorrect answer is option 'D'. Can you explain this answer?
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