Question

If a particle is executing SHM, with an amplitude A, the distance moved and the displacement of the body in a time equal to its period are

• A. 2A, A
• B. 4A ,0
• C. A,A
• D. 0, 2A

Answer 1

Answer: (B)

4A ,0

In a time period particle from equilibrium goes to one
extreme again to equilibrium then to other extreme and
again to equilibrium.
so, total displacement is zero because particle comes
to it's starting point but distance is $4\times A$ because
particle travels 4 times the distance A.
So, displacement =0
distance =4A