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#Fahrenheit

5 public questions tagged with this topic.

Specific Heat and Calorimetry

Which scale measures temperature relative to the freezing and boiling points of water with 180 intervals between them?

The Fahrenheit scale uses 32∘F for freezing and 212∘F for boiling of water, with 180 intervals (212−32 = 180) between these points. As per NCERT, applying relevant law/formula with correct units and sign convention leads to Fahrenheit. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

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Thermal Expansion of Solids and Liquids

What is the key difference between Celsius and Fahrenheit scales at the boiling point of water?

At the boiling point of water under standard pressure, the Celsius scale reads 100∘C, while the Fahrenheit scale reads 212∘F, reflecting different interval sizes and zero points. As per NCERT, applying relevant law/formula with correct units and sign convention leads to Celsius is 100∘, Fahrenheit is 212∘. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

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Fluid Pressure, Pascal's Law and Manometers

Which of the following is true about the Celsius and Fahrenheit scales at the ice point?

At the ice point (freezing of water at standard pressure), Celsius is 0∘C and Fahrenheit is 32∘F (Section 10.3). As per NCERT, applying relevant law/formula with correct units and sign convention leads to Celsius is 0∘, Fahrenheit is 32∘. This satisfies dimensional consistency and physical conditions given, so option D is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

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