Prepare for NEET Physics Thermal Properties Of Matter (Measurement Of Temperature) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert help to understand temperature scales and thermometric properties.
NEET Questions / Physics / Thermal Properties Of Matter / Measurment Of Temperature
A platinum resistance thermometer has a resistance of at and at . If its resistance is measured to be when placed in a hot bath, what is the temperature of the bath, assuming a linear relationship between resistance and temperature?
60°C
70°C
80°C
90°C
A constant volume gas thermometer shows pressure readings of at the triple point of water and at the boiling point of water at 1 atm. What is the ideal gas temperature corresponding to a pressure reading of ?
273.16 K
373.15 K
546.32 K
646.3 K
A thermocouple using iron and copper produces an emf of when its junctions are kept at and . If the cold junction is kept at and the emf is , what is the temperature of the hot junction?
\frac{100E_2}{E_1} - 20
\frac{100E_1}{E_2} - 20
\frac{100E_2}{E_1} + 20
\frac{E_2}{E_1} + 20
A pyrometer is calibrated to measure temperatures in the range of 500°C to 2500°C. Which of the following is NOT a valid reason for choosing a pyrometer over a thermocouple in this temperature range?
The object being measured may be inaccessible for direct contact.
The high temperatures could damage a thermocouple.
Pyrometers offer faster response times.
Pyrometers are more accurate than thermocouples at these temperatures.
Which of the following properties of materials is NOT utilized in temperature measurement devices?
Electrical Resistance
Thermoelectric EMF
Thermal Expansion
Magnetic Susceptibility
Which of the following is the SI unit of temperature?
Celsius
Fahrenheit
Kelvin
Rankine
A clinical thermometer is designed to measure temperature in which range?
0°C to 100°C
-10°C to 110°C
35°C to 42°C
20°C to 50°C
Which substance is commonly used in laboratory thermometers?
Water
Alcohol
Mercury
Air
The boiling point of water at standard atmospheric pressure is:
0°C
37°C
100°C
273°C
