1.

When the mercury thread rises to 3/4th of the distance between the two fixed points, what is the temperature indicated by the Fahrenheit scale?

Answer»

Solution :Consider the length of mercury THREAD between the two fixed points as 'l'.
Then, `l=DeltaF=180^(@)F` . . .(1)
Find `(3)/(4)l` by multipying `(3)/(4)` with `180^(@)F`(2)
here, LFP for FAHRENHEIT scale is `32^(@)F`. So, add `32^(@)F` tot eh ANSWER obtaine din the equation (2).
This becomes the temperature indicated by the fahrenheit scale, when the mercury thread RISES to (3/4) th of the distance between its two fixed points.


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