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Converting temperatures between Celsius, Fahrenheit and Kelvin scales

This type of question, asked 4 times: 21 Apr 2025 S1, 22 Apr 2025 S1, 13 Apr 2026 S1, 19 Apr 2026 S1. All 4 questions below, oldest first.

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  1. Question 1

    21 Apr 2025 S1

    33
    A centigrade and Fahrenheit thermometer are dipped in boiling water. The water temperature is lowered until the Fahrenheit temperature observed is 140∘F140^{\circ}F. At that time the temperature registered by the centigrade thermometer is

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  2. Question 2

    22 Apr 2025 S1

    14
    The temperature of a body on Kelvin scale is ' xx ' K. When it is measured by a Fahrenheit thermometer, it is found to be ' x '  ∘F\ ^{\circ}F. The value of ' xx ' is (nearly)

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  3. Question 3

    13 Apr 2026 S1

    113
    A celsius and a Fahrenheit thermometer are dipped in boiling water. The temperature of water is lowered until the Farenheit thermometer shows 140∘140^\circ. What is the fall in temperature on the Celsius thermometer?

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  4. Question 4

    19 Apr 2026 S1

    114
    If the two temperatures on Fahrenheit scale differ by 54 ∘F54\ ^\circ\mathrm{F}, then the difference in temperature on the Celsius scale is

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