question_answer 39)

                  Displacement vs. time curve for a particle executing S.H.M. is shown in fig. Choose the correct statements. (a) Phase of the oscillator is same at \[t=0\,s\] and \[t=2\,s\]. (b) Phase of the oscillator is same at \[t=2\,s\] and \[t=6\,s\]. (c) Phase of the oscillator is same at \[t=1\,s\] and \[t=7\,s\]. (d) Phase of the oscillator is same at \[t=1\,s\] and \[t=5\,s\].

Answer:

                  (b, d) Phase is the state of a particle in respect of its position and direct of motion w.r.t. mean position.