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MHT CET 2025 (21 Apr, Shift 1) · Thermometry & Thermal Expansion

Thermometry & Thermal Expansion question from MHT CET 2025 (21 Apr, Shift 1)

Q14MHT CET 2025 · 21 APR · SHIFT 1Easy

Thermometry & Thermal Expansion

A centigrade and Fahrenheit thermometer are dipped in boiling water. The water temperature is lowered until the Fahrenheit temperature observed is 140∘F140^\circ\text{F}. At that time the temperature registered by the centigrade thermometer is

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Answer: (b)

  1. C5=F−329\frac{C}{5}=\frac{F-32}{9}
  2. C=59(140−32)=59×108=60C=\frac{5}{9}(140-32)=\frac{5}{9}\times 108=60
  3. So the answer is (b) 60∘60^\circC.
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