Which of the following is/are the characteristics of simple harmonic motion
(i) The total energy is conserved
(ii) The acceleration is directly proportional to the displacement and is directed towards its mean position
(iii) The simple harmonic motion cannot be represented using sinusoidal functions
(iv) There are a maximum and minimum displacement about the equilibrium point
1
All the options
2
(i), (ii) and (iii)
3
(i), (ii) & (iv)
4
(i), (iii) & (iv) only