Q. At what temperature the centigrade (Celsius) and Fahrenheit, readings are the same
A) $- 40^{o}$
B) $+ 40^{o}$
C) ${36.6}^{o}$
D) $- 37^{o}$
Explanation
(a) $\frac{C}{5} = \frac{F - 32}{9} \Rightarrow \frac{t}{5} = \frac{t - 32}{9} \Rightarrow t = - 40^{o}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.