COMEDK · Physics · 2. Units and Dimensions
Which two of the following quantities are dimensionally equivalent?
- A (i) and (ii)
- B (i) and (iii)
- C (ii) and (iii)
- D (ii) and (iv)
Answer & Solution
Correct Answer
(C) (ii) and (iii)
Step-by-step Solution
Detailed explanation
We know that, Force \(=\) Mass \(\times\) Acceleration \(\Rightarrow \quad F=m \times a\) \(\Rightarrow \quad[F]=[\mathrm{m}][\mathrm{a}]=[\mathrm{M}]\left[\mathrm{LT}^{-2}\right]=\left[\mathrm{MLT}^{-2}\right]\) Pressure \((p)=\frac{\text { Force }(F)}{\operatorname{Area}(A)}\)…
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