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Chapter 1: Problem 64
If \(\mathrm{x}\) meter is a unit of length then area of $1 \mathrm{~m}^{2}=\ldots \ldots \ldots \ldots$ (a) \(x\) (b) \(\mathrm{x}^{2}\) (c) \(x^{-2}\) (d) \(x^{-1}\)
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The length of a rod is \((10.15 \pm 0.06) \mathrm{cm}\) what is the length of two such rods? (a) \((20.30 \pm 0.06) \mathrm{cm}\) (b) \((20.30 \pm 1.6) \mathrm{cm}\) (c) \((10.30 \pm 0.12) \mathrm{cm}\) (d) \((20.30 \pm 0.12) \mathrm{cm}\)
Which physical quantity is represented by $\mathrm{M}^{1} \mathrm{~L}^{3} \mathrm{~T}^{-3} \mathrm{~A}^{-2}$ ? (a) Resistivity (b) Resistance (c) conductance (d) conductivity
A particle has an acceleration of \(72 \mathrm{~km} / \mathrm{min}^{2}\) find acceleration in SI system. (a) \(0.5 \mathrm{~m} / \mathrm{s}^{2}\) (b) \(30 \mathrm{~m} / \mathrm{s}^{2}\) (c) \(18 \mathrm{~m} / \mathrm{s}^{2}\) (d) \(20 \mathrm{~m} / \mathrm{s}^{2}\)
If the centripetal force is of the form $\mathrm{m}^{\mathrm{a}} \mathrm{v} \mathrm{b}_{\mathrm{r}}^{\mathrm{c}}$ find the values of \(\mathrm{a}, \mathrm{b}\) and \(\mathrm{c}\) (a) \(1,2,1\) (b) \(1,2,-1\) \(\begin{array}{ll}\text { (c) } 1,3,-2 & \text { (d) }-1,3,-1\end{array}\)
What is the least count of vernier callipers? (a) \(10^{-4} \mathrm{~m}\) (b) \(10^{-5} \mathrm{~m}\) (c) \(10^{-2} \mathrm{~m}\) (d) \(10^{-3} \mathrm{~m}\)
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