OnlineCBT
Physics · UNITS AND MEASUREMENT
हिन्दीAccording to the principle of dimensional homogeneity, which of the following statements is/are correct? (I) If a physical equation is dimensionally correct, it must be physically correct. (II) If a physical equation is dimensionally incorrect, it must be physically wrong. (III) Dimensionless constants cannot be verified using dimensional analysis.
Correct answer · Option 2
(II) and (III) only
Explanation
A dimensionally correct equation need not be physically exact because dimensionless constants cannot be determined by dimensional analysis (making statement I false and III true). However, a dimensionally inconsistent equation must be incorrect (making statement II true).
