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Chapter 1: Problem 85
What is the least count of screw gauge? (a) \(10^{-4} \mathrm{~m}\) (b) \(10^{-5} \mathrm{~m}\) (c) \(10^{-2} \mathrm{~m}\) (d) \(10^{-6} \mathrm{~m}\)
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Dimensional formula for calories is .............. (a) \(\mathrm{M}^{1} \mathrm{~L}^{1} \mathrm{~T}^{-2}\) (b) \(\mathrm{M}^{2} \mathrm{~L}^{1} \mathrm{~T}^{-2}\) (c) \(\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{-2}\) (d) \(\mathrm{M}^{2} \mathrm{~L}^{2} \mathrm{~T}^{-2}\)
Match list - I with list - II $$ \begin{array}{|l|l|} \hline \multicolumn{1}{|c|} {\text { List - I }} & \multicolumn{1}{|c|} {\text { List - II }} \\ \hline \text { (1) Joule } & \text { (a) henry } \times \text { ampere/sec } \\\ \hline \text { (2) Watt } & \text { (b) coulomb } \times \text { volt } \\ \hline \text { (3) volt } & \text { (c) meter } \times \text { ohm } \\ \hline \text { (4) Resistivity } & \text { (d) (ampere) }^{2} \times \text { ohm } \\ \hline \end{array} $$ (a) \(b, d, c, a\) (b) \(c, a, b, d\) (c) \(b, d, a, c\) (d) \(b, c, a, d\)
The resistance of two resistance wires are \(R_{1}=(100 \pm 5) \Omega\) and \(\mathrm{R}_{2}=(200 \pm 7) \Omega\) are connected in series. find the maximum absolute error in the equivalent resistance of the combination. (a) \(35 \Omega\) (b) \(12 \Omega\) (c) \(4 \Omega\) (d) \(9 \Omega\)
Which physical quantity has dimensional formula as \(\mathrm{CR}\) where \(\mathrm{C}\) - capacitance and \(\mathrm{R}\) - Resistance? (a) Frequency (b) current (c) Time period (d) acceleration
Write dimensional formula of coefficient of viscosity (a) \(\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{-1}\) (b) \(\mathrm{M}^{-1} \mathrm{~L}^{1} \mathrm{~T}^{1}\) (c) \(\mathrm{M}^{1} \mathrm{~L}^{-1} \mathrm{~T}^{-1}\) (d) \(\mathrm{M}^{1} \mathrm{~L}^{1} \mathrm{~T}^{-1}\)
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