Join 60,000+ competitive exam aspirants
Complete the analogy: Clock : Time :: Thermometer : ?
Energy
Temperature
Pressure
Heat
Temperature
Identify the relationship: 'Object : Property measured by it'. A clock measures time; similarly, a thermometer measures temperature.
Identify the relationship: 'Object : Property measured by it'. A clock measures time; similarly, a thermometer measures temperature.
Analyze the first pair
A Clock is an instrument designed to measure and indicate the duration of Time.
Establish the logical link
The relationship is defined as [Measuring Instrument]: [Physical Quantity measured by the instrument].
Apply logic to the second pair
A Thermometer is an instrument specifically designed to measure the degree of hotness or coldness, which is Temperature.
A: Energy is a physical quantity not measured directly by a thermometer; C: Pressure is measured by a barometer or manometer; D: Heat is a form of energy transfer, but the thermometer measures the intensity (temperature) of heat, not the quantity of heat itself.
B is correct because a thermometer is the standard scientific instrument used specifically to measure the physical quantity known as temperature.
In instrument-based analogies, always differentiate between the property measured (e.g., temperature) and the underlying energy or state (e.g., heat).