In the diagram above, which of the simple pendula will resonate with P when set into oscillation
Attached Figure / Diagram
A
T
B
U
C
R and T
D
Q and R
Verified Correct Answer: A.
Physical Principles & Numerical Solution
The pendulum that will resonate with P is T. being of the same length and therefore of the same frequency.
Source: Myschool Past Questions Archive (Record #11815)