Physical World Units And Measurements Ques 2
2. Which one of the following groups have quantities that do not have the same dimensions?
[2000]
(a) pressure, stress
(b) velocity, speed
(c) force, impulse
(d) work, energy
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Answer:
Correct Answer: 2.(c)
Solution: (c) Force has dimension $\left[\mathrm{MLT}^{-2}\right]$ while impulse has dimension $\left[\mathrm{MLT}^{-1}\right]$, both have different dimensions.
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