Mention any two limitations of dimensional analysis.

Answer:

Limitations of dimensionless analysis:

  1. This method does not tell us how to determine the proportionality constant value.
  2. The method cannot be considered to derive composite relations. Examples s = ut + 1/2 at2 and 2as = v2 – u2.
  3. A formula containing trigonometric function, exponential function, and logarithmic function can not derive from it.
  4. The method cannot be used to derive the relationship between more than three quantities.

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