Properties Of Solids And Liquids Question 519

Question: At what temperature the centigrade (Celsius) and Fahrenheit, readings are the same [RPMT 1997, 99, 2003; BHU 1997; MNR 1992; DPMT 1998; CPMT 1995; UPSEAT 1999; KCET 2000]

Options:

A) ? 40°

B) + 40°

C) 36.6°

D) ? 37°

Show Answer

Answer:

Correct Answer: A

Solution:

$ \frac{C}{5}=\frac{F-32}{9} $

therefore $ \frac{t}{5}=\frac{t-32}{9} $

therefore $ t=-40{}^\circ $



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