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Physics Revision Notes For Class 11 Chapter 2 Units and Measurement

Class 11 physics revision notes chapter 2 units and measurement is carefully designed by subject experts who have provided the definition of all the physical quantities used to represent data. Whether it could be while measuring length, mass, or speed etc. They would be prone to all the dimensional formulas of physical quantities used in physics. They would be witnessing range and order of time intervals of various phenomenon such as travel time for light from the nearest star. They would also be knowing the range and order to masses of electron and positron etc. and will get to learn about the relative error, percentage and absolute error etc.

CBSE Class 11 Physics Chapter 2 Notes 

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Frequently asked Questions on CBSE Class 11 Physics Notes Chapter 2: Units and Measurements

What is a ‘Unit of measurement’?

A standard amount of a physical quantity, such as length, mass, energy, etc, specified multiples of which are used to express magnitudes of that physical quantity is called a unit of measurement.

What is the definition of ‘Speed’?

The ratio of the distance traveled by an object (regardless of its direction) to the time required to travel that distance.

What is ‘Relative error’?

Relative error: When used as a measure of precision, is the ratio of the absolute error of a measurement to the measurement being taken.

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