SkoolGenie
Revision Bank
Class 11Physics · Ch 1JEENEET

Units and Measurements

Units and MeasurementsSI system of units (1.2)–Seven base units–Defined by constants since 2019Derived unitsRadian and steradianPrefixes and conventionsSignificant figures (1.3)–Counting rules–Trailing zerosArithmetic rulesRounding offErrors in measurement (JEE/NEET)–Systematic vs randomAbsolute, relative, percentageCombination of errors–Z = A^p B^q / C^rAccuracy vs precisionInstruments and least count (JEE)–Vernier callipers–Reading = MSR + VC x LCScrew gaugeZero errorDimensions (1.4-1.5)–Dimensional formulaDimensional equationDimensionless quantities–Same dimensions, different quantitiesDimensional analysis (1.6)–Checking an equation (1.6.1)Converting unitsDeriving relations (1.6.2)–Pendulum periodLimitations

tap = open · ⊖ = fold · hold = got it

Tap a topic to open its note and lectures; tap its little circle to fold the branch. Hold it (or double-tap) when you can explain it without looking. That marks it got it and schedules it for spaced revision.

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Map yaad hai? Tap a card to check yourself, ★ to keep it.