COMEDK · Physics · 2. Units and Dimensions
The dimension \([\mathrm{ML}^{-1} \mathrm{~T}^{-2}]\) is the physical quantity of
- A Energy density
- B Pressure \(\times\) Area
- C Power \(\times\) Time
- D \(\mathrm{\dfrac{Force}{Pressure}}\)
Answer & Solution
Correct Answer
(A) Energy density
Step-by-step Solution
Detailed explanation
The given dimension is \([M L^{-1} T^{-2}]\). Pressure is defined as \(\dfrac{\text{Force}}{\text{Area}} = \dfrac{[M L T^{-2}]}{[L^2]} = [M L^{-1} T^{-2}]\). Energy density is defined as…
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