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A student carries out an experiment to investigate how irradiance varies with distance - Scottish Highers Physics - Question 14 - 2017
Question 14
A student carries out an experiment to investigate how irradiance varies with distance. A small lamp is placed at a distance d away from a light meter. The irradian... show full transcript
Worked Solution & Example Answer:A student carries out an experiment to investigate how irradiance varies with distance - Scottish Highers Physics - Question 14 - 2017
Step 1
D. Repeating the experiment in a darkened room.
Answer
To reduce systematic uncertainty in measuring irradiance, it is crucial to eliminate external light sources that could affect the readings. By performing the experiment in a darkened room, the consistent influence of ambient light is minimized. This ensures that the measurements of irradiance from the lamp are isolated and accurate, thereby enhancing the reliability of the data collected.