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How does bubble size affect the sensitivity of the spirit level?

13. How does bubble size affect the sensitivity of the spirit level?

1. A smaller bubble has greater sensitivity
2. A larger bubble has greater sensitivity
3. Both A and B
4. None of the above

Answer

The correct answer is: A) A smaller bubble has greater sensitivity

Explanation

A smaller bubble has greater sensitivity. This is because a small bubble will quickly show the response to the slight angular variation, which will make it easier to detect the surface line (whether horizontal or vertical).