Q 11-01-030NEETEAMCET 2008 (Medical)Medium
If power ($P$), surface tension ($T$) and Planck's constant ($h$) are arranged so that the dimensions of time in their dimensional formulae are in ascending order, then which of the following is correct?
Answer: (A) $P,\ T,\ h$
Write the power of time in each:
Power: $[ML^2T^{-3}]$, so $-3$
Surface tension: $[MT^{-2}]$, so $-2$
Planck's constant: $[ML^2T^{-1}]$, so $-1$
In ascending order: $-3 < -2 < -1$, which gives $P,\ T,\ h$.
Solution by Sreeraj P, M.Sc Physics