WBCHSE Class 11 Physics Thermometry Multiple Choice Questions

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Chapter 4 Thermometry Multiple Choice Questions

Question 1. At the triple point of water the magnitude of pressure is

  1. 4.58 mm of Hg
  2. 4.57 mm of Hg
  3. 4.59 mm of Hg
  4. 4.56 mm of Hg

Answer: 1. 4.58 mm of Hg

Question 2. The temperature at the triple point of water is

  1. 273.16 K
  2. 273.16 °F
  3. 273.16 °C
  4. 273 K

Answer: 1. 273.16 K

Question 3. The universally accepted primary thermometer is

  1. Liquid thermometer
  2. Platinum resistance thermometer
  3. Ideal gas thermometer
  4. Alcohol thermometer

Answer: 3. Ideal gas thermometer

Question 4. If the difference between two temperatures in the Kelvin scale is ΔT and that in the Celsius scale is Δt, then—

  1. ΔT = Δt
  2. ΔT = At+ 273
  3. ΔT = At-273
  4. None of the above

Answer: 1. AT = At

Question 5. A centigrade and a Fahrenheit thermometer are dipped in boiling water. Now this water is cooled and the reading on the Fahrenheit scale is 140 °F. The decrease in temperature on the Centigrade thermometer is

  1. 30 °C
  2. 40 °C
  3. 60 °C
  4. 80 °C

Answer: 2. 40 °C

WBCHSE Class 11 Physics Thermometry Multiple Choice Questions

Question 6. A gas thermometer is more sensitive than a liquid thermometer because

  1. The expansibility of gas is more than that of a liquid
  2. Gas is easily available
  3. Gas is comparatively lighter
  4. Gas thermometer is the primary thermometer

Answer: 1. Expansibility of gas is more than that of a liquid

Question 7. A constant volume gas thermometer shows pressure readings of 50cm of Hg and 90cm of Hg at 0°C and 100° C respectively. When the pressure reading is 60cm of Hg, the temperature is

  1. 25°C
  2. 40°C
  3. 15°C
  4. 12.5°C

Answer: 1. 25°C

Question 8. On which of the following scales of temperature, the temperature is never negative

  1. Celsius
  2. Fahrenheit
  3. Reaumur
  4. Kelvin

Answer: 4. Kelvin

Question 9. ‘Stem correction’ in platinum resistance thermometers are eliminated by the use of

  1. Cells
  2. Electrodes
  3. Compensating leads
  4. None of the above

Answer: 3. Compensating leads

Question 10. The temperature of the sun is measured with

  1. Platinum thermometer
  2. Gas thermometer
  3. Pyrometer
  4. Vapour pressure thermometer

Answer: 3. Pyrometer

In these type of questions, more than one options are correct.

Question 11. To measure the temperature say around 400°C. Which of the following thermometers can be used most conveniently?

  1. Gas thermometer
  2. Mercury thermometer
  3. Platinum resistance thermometer
  4. Thermocouple thermometer

Answer:

1. Gas thermometer

3. Platinum resistance thermometer

4. Thermocouple thermometer

Question 12. Reading of temperature may be same on

  1. Celsius and Kelvin scale
  2. Fahrenheit and Kelvin scale
  3. Celsius and Fahrenheit scale
  4. All the three scales

Answer:

2. Fahrenheit and Kelvin scale

3. Celsius and Fahrenheit scale

Question 13. Which of the following statements are not true?

  1. Size of degree is the smallest on celsius scale
  2. Size of degree is smallest on Fahrenheit scale
  3. Size of degree is equal on Fahrenheit and kelvin scale
  4. Size of degree is equal on celsius and kelvin scale

Answer:

1. Size of degree is the smallest on celsius scale

3. Size of degree is equal on Fahrenheit and kelvin scale

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