1.

A measured temperature on Fahrenheit scale is 200""^(@)F. What will this reading be on celsius scale ?

Answer»

`40""^(@)C`
`94""^(@)C`
`93.3""^(@)C`
`30""^(@)C`

Solution :There are only three SCALES to measure temperature `""^(@)C, ""^(@)F` and . The K is the SI unit.
The temperature on TWO scales are related to each other by the following EQUATION.
`""^(@)F= 9/5 t""^(@)C+32`
APPLYING the values in above equation,
`200-32= 9/5 t""^(@)C`
`:.9/5 t""^(@)C= 168`
`:. t""^(@)C= (168xx5)/(9) = 93.3""^(@)C`


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