Question:

The measured value of the length of a simple
pendulum is 20 cm with 2 mm accuracy. The time for 50 oscillations was measured to be 40 seconds with 1 second resolution. From these
measurements, the accuracy in the measurement of acceleration due to gravity is N%. The value of N is: 

(1) 4 

(2) 8 

(3) 6 

(4) 5

 

                                                         JEE-2024         

Solution:                
The measured value of the length of a simple pendulum is 20 cm with 2 mm accuracy. The time for 50 oscillations was measured to be 40 seconds with 1 second resolution. From these measurements, the accuracy in the measurement of acceleration due to gravity is N%. The value of N is: (1) 4 (2) 8 (3) 6 (4) 5 JEE-2024

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