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MHT CET202613 April 2026Morning ShiftPhysicsThermal Properties of MatterActual

A celsius and a Fahrenheit thermometer are dipped in boiling water. The temperature of water is lowered until the Farenheit thermometer shows 140^ . What is the fall in temperature on the Celsius thermometer?

Options

  1. A60^ C
  2. B40^ C
  3. C50^ C
  4. D80^ C

Correct answer

B. 40^ C

Step-by-step solution

The initial temperature of boiling water is 100^ C, which corresponds to 212^ F. The final temperature is given as 140^ F. The relationship between the Celsius and Fahrenheit scales is given by: C 5 = F - 32 9 Substituting F = 140 : C 5 = 140 - 32 9 = 108 9 = 12 C = 60^ C The fall in temperature on the Celsius thermometer is the difference between the initial and final temperatures: C = 100^ C - 60^ C = 40^ C Answer: 40^ C

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