The following figure shows displacement versus time curve for a particle executing simple harmonic motion :

Which one of the following statements is correct?

Options

A. Phase of the oscillating particle is same at t = 1 s and t= 3 s
B. Phase of the oscillating particle is same at t = 2 s and t= 8 s
C. Phase of the oscillating particle is same at t = 3 s and t= 7 s
D. Phase of the oscillating particle is same at t = 4 s and t = 10 s

Answer

C

Explanation

Phase of oscillating particle at any instant is a physical quantity which completely expresses the position and direction of motion of particle at that instant with respect to its mean position. Phase of the oscillating particle is same at t = 3 s and t = 7 s.