MHT CET 2026 Physics question
The period of oscillation of a simple pendulum is given by where l is about 80 cm and is known to have 0.1 cm accuracy. The period is about 1.5 s. the time of 50 oscillation is measured by a stop watch of least count 0.1s. the percentage error in g is nearly
Answer: (B)
Solution
From we get , so the fractional error is . Length error: . The time of 50 oscillations is s with least count s, so
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