Physics GK 14 - Simple Harmonic Motion (SHM)

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1.
With reference to a swinging pendulum, which among the following statements is correct when it is at bottom (middle of arc)?
2.
Which type of oscillation can be defined by a single harmonic function?
3.
What is the S.I unit of frequency?
4.
Which of the following represents angular frequency of a body?
5.
Which of these is a physical quantity which completely express the position and direction of motion of the particle?
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