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The ray of light from the ray box should be as narrow as possible - AQA - GCSE Physics - Question 3 - 2020 - Paper 1
Question 3
The ray of light from the ray box should be as narrow as possible. Explain why using a wider ray would give less accurate results than using a narrower ray.
Worked Solution & Example Answer:The ray of light from the ray box should be as narrow as possible - AQA - GCSE Physics - Question 3 - 2020 - Paper 1
Step 1
Explain why using a wider ray would give less accurate results than using a narrower ray.
Answer
Using a wider ray can lead to a larger uncertainty in the measurements. This is because it is harder to judge the center of a wider beam, resulting in increased random errors in the angle measurement. Consequently, the data may become less reliable since the ray can reflect through various points, causing difficulties in accurately determining the refraction angle.