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Chapter 1: Problem 2
Physics' comes from a ............ word meaning nature (A) Hindi (B) German (C) Greek (D) Sanskrit
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The period of oscillation of a simple pendulum is given by $\mathrm{T}=2 \pi \sqrt{(} \ell / \mathrm{g})$ what is the equation of the relative error \(\Delta \mathrm{T} / \mathrm{T}\) in measurement of period \(\mathrm{T}\) ? (a) \((1 / 2)(\Delta \ell / \ell)\) (b) \(2(\Delta \ell / \ell)\) (c) \((1 / 4)(\Delta \ell / \ell)\) (d) \(4(\Delta \ell / \ell)\)
Dimensional formula for electromotive force (emf) (a) \(\mathrm{M}^{2} \mathrm{~L}^{1} \mathrm{~T}^{-1} \mathrm{~A}^{-3}\) (b) \(\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{-3} \mathrm{~A}^{-1}\) (c) \(\mathrm{M}^{1} \mathrm{~L}^{1} \mathrm{~T}^{-3} \mathrm{~A}^{-1}\) (d) \(\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{3} \mathrm{~A}^{-1}\)
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 unit of joule - second? (a) velocity (b) plank's constant (c) energy (d) viscosity
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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