A student measured the diameter of a small steel ball using a screw gauge of least count \(0.001\) cm. The main scale reading is \(5\) mm and zero of circular scale division coincides with \(25\) divisions above the reference level. If the screw gauge has a zero error of \(-0.004\) cm, the correct diameter of the ball is:
1. | \(0.521\) cm | 2. | \(0.525\) cm |
3. | \(0.053\) cm | 4. | \(0.529\) cm |