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Question 5037
NEET Physics · Hard

Units & Measurements: Dimensional Analysis MCQ

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Dimensional AnalysisHardQuestion 5037

Question

Which of the following sets of quantities are all dimensionless?
  1. A
    Strain, angle, refractive index
    Correct
  2. B
    Frequency, velocity, acceleration
  3. C
    Strain, temperature, pressure
  4. D
    Angle, momentum, energy

Correct answer

Strain, angle, refractive index

Explanation

Strain = ΔL/L (dimensionless), angle = arc/radius (dimensionless), refractive index = c/v (dimensionless). All three are dimensionless quantities.

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