To find the distance d over which a signal can be seen clearly in fogg – InterviewSolution

1.	To find the distance d over which a signal can be seen clearly in foggy conditions, a railway's engineer uses dimensional analysis and assumes that the distance depends on the mass density ρ of the fog, intensity (power/area) S of the light from the signal and it's frequency f. The engineer finds that d is proportional to S1/n. The value of n is
Answer» To find the distance $d$ over which a signal can be seen clearly in foggy conditions, a railway's engineer uses dimensional analysis and assumes that the distance depends on the mass density $ρ$ of the fog, intensity (power/area) $S$ of the light from the signal and it's frequency $f$ . The engineer finds that $d$ is proportional to $S^{1 / n}$ . The value of $n$ is

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