GATE Electrical Engineering (EE) 2015 Shift 1 Solved Paper

A 3-phase $50\mathit{H}\mathit{z}$ square wave (6-step) VSI feeds a 3-phase, 4 pole induction motor. The VSI line voltage has a dominant $5^{\mathit{t}\mathit{h}}$ harmonic component. If the operating slip of the motor with respect to fundamental component voltage is 0.04, the slip of the motor with respect to $5^{\mathit{t}\mathit{h}}$ harmonic component of voltage is ______.