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Units and Measurements

  • Vernier Callipers and Zero Error
  • Propagation of Errors
  • Vernier Calipers and Least Count
  • Dimensional Analysis
  • Errors in Measurement
  • Combination of Errors
  • Dimensions and Units of Physical Quantities
  • Dimensional Formulae
  • Significant Figures
  • Measurement of Length – Screw Gauge
  • Units of Energy – Electron Volt
  • Errors in Measurement – Combination of Errors
  • Unit systems and dimensional consistency (c = 1 convention)
  • Vernier callipers and least count
  • Significant figures in measured and derived quantities
  • Error analysis - propagation of errors
  • Screw gauge - least count and reading
  • Mean absolute error and relative error
  • Conversion between degree, minute and radian
  • Significant figures - vernier calliper readings
  • Dimensional analysis of mechanical quantities
All Exams › NEET Previous Year Questions › Physics › Units and Measurements › Unit systems and dimensional consistency (c = 1 convention)

Unit systems and dimensional consistency (c = 1 convention)

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2026 1 question

  1. The speed of light in vacuum is taken as unity. If light takes 6 min 40 s to reach the Earth from the Sun, the distance between the Sun and the Earth in the new unit is:
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