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Chapter 1: Problem 115
Subtract \(0.2 \mathrm{~J}\) from \(7.36 \mathrm{~J}\) and express the result with correct number of significant figures. (a) \(7.160 \mathrm{~J}\) (b) \(7.016 \mathrm{~J}\) (c) \(7.16 \mathrm{~J}\) (d) \(7.2 \mathrm{~J}\)
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Write the unit of angular acceleration in the SI system. (a) \(\mathrm{N} \cdot \mathrm{Kg}\) (b) \(\mathrm{rad} /(\mathrm{sec})^{2}\) (c) \(\mathrm{m} / \mathrm{sec}\) (d) \(\mathrm{N} / \mathrm{kg}\)
Which physical quantity is represented by $\mathrm{M}^{1} \mathrm{~L}^{1} \mathrm{~T}^{-3} \mathrm{~A}^{-1} ?$ (a) Stress (b) Resistance (c) Electric field (d) potential Difference
Dimensional formula for conductance is ........... (a) \(\mathrm{M}^{-1} \mathrm{~L}^{2} \mathrm{~T}^{-3} \mathrm{~A}^{2}\) (b) \(\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{-2} \mathrm{~A}^{1}\) (c) \(\mathrm{M}^{1} \mathrm{~L}^{-2} \mathrm{~T}^{3} \mathrm{~A}^{2}\) (d) \(\mathrm{M}^{-1} \mathrm{~L}^{-2} \mathrm{~T}^{3} \mathrm{~A}^{2}\)
The mass of substance is \(75.5 \mathrm{gm}\) and its volume is $25 \mathrm{~cm}^{3}$. It's density up to the correct significant figure is \(\ldots \ldots \ldots \ldots \ldots\) (a) \(3.02 \mathrm{gm} / \mathrm{cm}^{3}\) (b) \(3.200 \mathrm{gm} / \mathrm{cm}^{3}\) (c) \(3.02 \mathrm{gm} / \mathrm{cm}^{3}\) (d) \(3.1 \mathrm{gm} / \mathrm{cm}^{3}\)
Which of the following symbol of unit does not follow practical norms for the use of SI system? (a) \(\mathrm{Kg}\) (b) \(\mathrm{kg}\). (c) \(\mathrm{k}\) (d) \(\mathrm{A}\)
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