Questions in Oscillations

Select	Question
	Which of the following statement is incorrect for an object executing S.H.M.
	The variation of acceleration (a) and displacement (x) of the particle executing SHM is indicated by the following curve:
	The displacement of a particle in S.H.M. is $x = a \sin \omega t$. Which of the following graph between displacement and time is correct?
	The displacement of a particle in S.H.M. is $x = a \sin \omega t$. Which of the graph between velocity and time is correct ?
	The displacement of a particle in S.H.M. is $x = a \sin \omega t$. Which of the graph between kinetic energy and time is correct ?
	The displacement of a particle in S.H.M. is $x = a \sin \omega t$. Which of the graph between potential energy and time is correct ?
	The displacement of a particle in S.H.M. is $x = a \sin \omega t$. Which of the graph between acceleration and time is correct ?
	If the displacement of a particle executing SHM is $x = a \cos \omega t$, which of the graph between displacement and time is correct ?
	If the displacement of a particle executing SHM is $x = a \cos \omega t$, which of the graph between velocity and time is correct ?
	If the displacement of a particle executing SHM is $x = a \cos \omega t$, which of the graph between acceleration and time is correct ?