For Question `x= 0.25 cos ( 6000 t + 0.85)` ,find (i) period and (ii) initial phase

Explanation

To solve the question \( x = 0.25 \cos(6000t + 0.85) \), we need to find the period and the initial phase of the oscillation.

### Step-by-Step Solution:

1. **Identify the Standard Form**:
The standard form of the equation for Simple Harmonic Motion (SHM) is:
\[
x = A \cos(\omega t + \phi)
...