Question : Choose the word that can substitute for the given group of words.
A unit to measure light
Option 1: Lumen
Option 2: Watt
Option 3: Horse-power
Option 4: Ampere
Answer (1)
23rd Jan, 2024
Correct Answer: Lumen
Solution : The first option is the correct answer.
Lumen is a unit used to measure the total quantity of visible light emitted by a source per unit of time.
The meanings of the other options are as follows:
- The watt is the unit of power in the International System of Units (SI).
- Horse power is a unit of power used in the context of mechanical power.
- The ampere is the unit of electric current in the International System of Units (SI).
Therefore, the correct answer is lumen.
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