Physics Question from JEE Main 2023 · 1 February, Shift 2

A square shaped coil of area $70 \, \text{cm}^2$ having $600$ turns rotates in a magnetic field of $0.4 \, \text{wbm}^{-2}$, about an axis which is parallel to one of the side of the coil and perpendicular to the direction of field. If the coil completes $500$ revolution in a minute, the instantaneous emf when the plane of the coil is inclined at $60^\circ$ with the field, will be _____ V. (Take $\pi = \frac{22}{7}$)