General Science - Physics (Basics)
Which instrument is used to measure the intensity of light?
Which instrument is used to measure the intensity of light?
medium Q7 of 15
Step-by-Step Solution
Step 1: Identify the physical quantity
The question asks for the instrument that measures light intensity or brightness.Step 2: Recall instrument functions
Photometer measures intensity of light. Spectrometer measures light spectrum, Calorimeter measures heat, Galvanometer measures small electric currents.Final Answer:
Photometer → Option CQuick Check:
Light intensity measurement = Photometer ✅
Quick Trick: Photo means light; photometer measures light intensity.
Common Mistakes:
- Confusing spectrometer or calorimeter with photometer.
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