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Chapter 1: Problem 53
Which unit of physical quantity remains same for all unit system? (a) meter (b) second (c) ampere (d) kilogram
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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) \(\mathrm{A}\)
From $\left[\mathrm{p}+\left(\mathrm{a} / \mathrm{v}^{2}\right)\right](\mathrm{v}-\mathrm{b})=$ constant equation is dimensionally correct find the dimensional formula for \(\mathrm{b}\) ? where \(\mathrm{P}=\) pressure \(\mathrm{V}=\) volume (a) \(\mathrm{M}^{0} \mathrm{~L}^{3} \mathrm{~T}^{0}\) (b) \(\mathrm{M}^{1} \mathrm{~L}^{3} \mathrm{~T}^{0}\) (c) \(\mathrm{M}^{0} \mathrm{~L}^{1} \mathrm{~T}^{3}\) (d) \(\mathrm{M}^{1} \mathrm{~L}^{1} \mathrm{~T}^{-1}\)
The intercepted area of the spherical surface about the center is $0.025 \mathrm{~m}^{2}\( having diameter \)50 \mathrm{~cm}$ what will be solid angle? (a) \(4 \times 10^{-1} \mathrm{sr}\) (b) \(1 \times 10^{3} \mathrm{sr}\) (c) \(10^{-1} \mathrm{sr}\) (d) \(5 \times 10^{-1} \mathrm{sr}\)
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) \(\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{3} \mathrm{~A}^{-1}\)
Equation of force \(F=a t+b t^{2}\) where \(F\) is force in Newton \(t\) is time in second, then write unit of \(\mathrm{b}\). (a) \(\mathrm{Ns}^{-1}\) (b) \(\mathrm{Ns}^{2}\) (c) \(\mathrm{Ns}\) (d) \(\mathrm{Ns}^{-2}\)
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