Physics (AS & A Level) · Oct / Nov 2025 · Paper 13 · Question 2

Two quantities are measured. L = 6.8 ± 0.1 cm T = 2.42 ± 0.08 s L and T are related to X by the equation shown. X = \frac{4\pi^2 L}{T^2} What is the calculated value and uncertainty of X?

1. A45.8 ± 0.2 cm s⁻²
2. B45.8 ± 0.3 cm s⁻²
3. C46 ± 2 cm s⁻²
4. D46 ± 4 cm s⁻²

As printed in the paper