To determine the physical quantity represented by the dimension [ML−1T−2], let's analyze the dimensions of each of the given options step-by-step: Option A: Pressure × Area Pressure has the dimension [ML−1T−2] and Area has the dimension [L2]. Thus: [ML−1T−2]×[L2]=[ML‌T−2] This does not match [ML−1T−2]. Option B: ‌
‌ Force ‌
‌ Pressure ‌
Force has the dimension [MLT−2] and Pressure has the dimension [ML−1T−2]. Thus: ‌
[MLT−2]
[ML−1T−2]
=[L2] This does not match [ML−1T−2]. Option C: Power × Time Power has the dimension [ML2T−3] and Time has the dimension [T]. Thus: [ML2T−3]×[T]=[ML2T−2] This does not match [ML−1T−2]. Option D: Energy density Energy density has the dimension [ Energy Volume ]. Energy has the dimension [ML2T−2] and Volume has the dimension [L3]. Thus: ‌
[ML2T−2]
[L3]
=[ML−1T−2] This matches [ML−1T−2]. Hence, the correct answer is: Option D: Energy density