MHT CET 2026 Physics question
The period of oscillation of a simple pendulum is T=2 (L/g) Measured value of 'L' is 10 cm known to 1 mm accuracy and time for 100 oscillations is 50 second, using a watch of 1 second resolution. The percentage error in the measurement of 'g' is
Answer: (C)
Solution
From , . The maximum fractional error is . Here . The period is found from the total time of oscillations, , so
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