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JEE Advanced 2014 Paper 1 Offline
Numerical
+3
-0
To find the distance d over which a signal can be seen clearly in foggy conditions, a railways engineer uses
dimensional analysis and assumes that the distance depends on the mass density $$\rho $$ of the fog, intensity
(power/area) S of the light from the signal and its frequency f. The engineer finds that d is proportional to
S1/n. The value of n is
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Questions Asked from Units & Measurements (Numerical)
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