Two identical simple pendulums A and B are fixed at same point. They are displaced by very small angles α and β ( β > α ) and released from rest. Find the time after which B reaches its initial position for the first time. Collisions are elastic and length of strings is λ .
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Time period of both A and B T = 2п 
After first collision, B acquires amplitude of A and after second collision it acquires its own amplitude in this process time taken is
= 
+ 
+ 
+ 
= T = 
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