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  1. Exams
  2. IIT JEE
  3. Physics
  4. Physics and measurement
26 marks

Physics and measurement

This chapter covers the fundamental concepts of physics, including units, dimensions, errors in measurement, and significant figures.

8 Topics
20h prep
2% subject weight
8 Topics
1

Physics, technology and society

2m1/10
📌 Key FormulaRole of physics in technology and society.
2

SI Units

2m1/10
📌 Key FormulaSeven base units: m, kg, s, A, K, mol, cd.
3

Fundamental and derived units

2m1/10
📌 Key FormulaDerived units from base units, e.g., N = kg m/s²
4

Least count

2m1/10
📌 Key FormulaSmallest value that can be measured by an instrument.
5

Accuracy and precision of measuring instruments

2m1/10
📌 Key FormulaAccuracy near true value, precision repeated measurements.
6

Errors in measurement

2m2/10
📌 Key FormulaAbsolute error, relative error, percentage error.
7

Dimensions of Physics quantities

2m2/10
📌 Key FormulaExpressing derived quantities in terms of base quantities: e.g., [F] = MLT⁻²
8

Dimensional analysis and its applications

2m3/10
📌 Key FormulaChecking equation homogeneity, deriving relations, converting units.