Two simple pendulums whose lengths are 100 cm and 121 cm are suspended side by side. Their bobs are pulled together and then released. After how many minimum oscillations of the longer pendulum, will the two be in phase again?
Text Solution
Verified by ExpertsB
Let 
and 
be the time period of the two pendulums,
and 
because 
Let at 
, they start swinging together. Since, their time periods are different, the swinging will not be same always. Only when number of completed oscillation differs by an integer, the two pendulums will again begin to swing together.
Let longer length pendulum completes 
oscillation and shorter length pendulum completes 
oscillation, for the two, to be in same phase, then 
.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems