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Chapter 1: Problem 79
Volt/meter is the unit of \(\ldots \ldots \ldots \ldots \ldots\) (a) Work (b) viscosity (c) Electric field intensity (d) velocity
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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) \(5 \times 10^{-1} \mathrm{sr}\)
Light year is a unit of \(\ldots \ldots \ldots \ldots \ldots\) (a) Mass (b) volume (c) density (d) Distance
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) \(1,2,-1\) \(\begin{array}{ll}\text { (c) } 1,3,-2 & \text { (d) }-1,3,-1\end{array}\)
Dimensional formula for Boltzmann's constant is $\ldots \ldots \ldots \ldots \ldots$ (a) \(\mathrm{M}^{1} \mathrm{~L}^{1} \mathrm{~T}^{-2} \mathrm{~K}^{-1}\) (b) \(\mathrm{M}^{2} \mathrm{~L}^{1} \mathrm{~T}^{-2} \mathrm{~K}^{-1}\) (c) \(\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{-2} \mathrm{~K}^{-1}\) (d) \(\mathrm{M}^{2} \mathrm{~L}^{2} \mathrm{~T}^{1} \mathrm{~K}^{-2}\)
Which physical quantity has unit of pascal - second? (a) Force (b) Energy (c) Coefficient of viscosity (d) velocity
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