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Grade 12Wave Optics

2 pendulums of lenghts 1.44m and 1m start to swing together. The number of vibrations after which they will again start swinging together is.....

Profile image of Vaishnavi Para
9 Years agoGrade 12
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1 Answer

Profile image of Vikas TU
9 Years ago
The day and age is straightforwardly relative to the square base of the length of pendulum 
T α √L 
T1/T2 = √L1/L2 
= √1.44/1 
= 12/10 
10T1 = 12T2 
After 10 motions they will swing together.

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