The phase of simple harmonic oscillator is

The initial phase of a simple harmonic oscillator is zero. At what fraction of the period, the velocity is half of its maximum value?

Simple harmonic oscillations are

Statement (a): The velocity of simple harmonic oscillator is maximum at mean position Statement (b): At extreme position the acceleration of simple harmonic oscillator is maximum. Statement (c): The velocity of simple harmonic oscillator is minimum at extreme position

The displacement of a simple harmonic oscillator is given by y= 0.40 sin (440t +0.61) . For this, what are the value of initial phase?

The amplitude of a simple harmonic oscillator is doubled. How does this affect the period