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At which temperature, the centigrade and Fahrenheit scales are equally?

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in Engineering Physics I by (558k points)
At which temperature, the centigrade and Fahrenheit scales are equally?

(a) 40°

(b) -40°

(c) 37°

(d) -80°

I got this question in an internship interview.

This intriguing question comes from Absorption and Emission topic in chapter Kinetic Theory of Gases of Engineering Physics I

1 Answer

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Best answer
Correct choice is (b) -40°

For explanation: C/5=(F-32)/9

C/5=(C-32)/9

4C=-160

C=F=-40°.

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