Same chapter3 marksDifficulty: Medium
Derive the dimensional formula of the universal gravitational constant G.
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3 marksDifficulty: Medium
State two limitations of dimensional analysis.
Original Khojo Papers practice question — not from a past board paper.
Answer
It cannot determine dimensionless constants such as the ½ in ½mv2 or the 2π in the pendulum formula. It cannot be used for an equation that is a sum of terms of the same dimensions but different physical origin, and it cannot handle trigonometric, exponential or logarithmic functions.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
It can nevertheless check an equation and convert units reliably.
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