Skip to content
Login Register

#temperature scales

4 public questions tagged with this topic.

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.

View Details
Thermal Expansion of Solids and Liquids

What is the relationship between the Celsius and Kelvin scales?

The Kelvin scale is offset from the Celsius scale by 273.15, so T = tC+273.15 (Section 10.4), where T is Kelvin and tC is Celsius. As per NCERT, applying relevant law/formula with correct units and sign convention leads to T\=tC+273.15. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.

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

View Details
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.

View Details
Temperature Scales and Triple Point

Which temperature scale uses absolute zero as its starting point?

The Kelvin scale starts at absolute zero, the theoretical point where all molecular motion ceases, making it an absolute temperature scale. As per NCERT, applying relevant law/formula with correct units and sign convention leads to Kelvin. This satisfies dimensional consistency and physical conditions given, so option A is scientifically correct.

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

View Details