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Question

# Assertion: The temperature at which centigrade and Fahrenheit thermometer read the same is −40∘C. Reason: There is no relation between Fahrenheit and centigrade temperature scale.

A
Both Assertion and Reason are correct and Reason is the correct explanation.
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B
Both Assertion and Reason are correct and Reason is not the correct explanation.
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C
Assertion is correct but Reason is incorrect.
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D
Assertion is incorrect but Reason is correct.
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Solution

## The correct option is C Assertion is correct but Reason is incorrect.We know that, 95C=F−32 Let T be the temperature where both the thermometers have same reading. So, 95×T=T−32 ⇒4T5=−32 ⇒T=−40∘C Hence, Assertion is correct but Reason is incorrect.

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