Question

Match the pairs: [h!] |l|l| Group 'A' & Group 'B'
Thermometer & (a) Mechanical energy
& (b) To measure temperature
& (c) To measure electric current

Hint:

Remember: Thermometers are used to measure temperature, not mechanical energy or electric current.

Answer 1

% Solution Solution:
To match the pairs, let’s analyze the instruments and their functions: A thermometer is an instrument designed specifically to measure temperature. It works by detecting the physical changes that occur in a material (such as the expansion of mercury or alcohol) as the temperature increases or decreases. The correct match for the thermometer is (b) To measure temperature. - Mechanical energy: Instruments used to measure mechanical energy include devices like spring scales or energy meters. These are not associated with a thermometer, so the match (a) Mechanical energy is not appropriate for the thermometer. - To measure electric current: Instruments used to measure electric current include ammeters. These are not related to thermometers, so the match (c) To measure electric current is also incorrect for the thermometer.
Thus, the correct matching is:
- Thermometer → (b) To measure temperature.