1.The rotation of the Earth (of radius RRR) about its axis speeds up to a value such that a man at latitude angle 45∘45^\circ45∘ feels weightlessness. The duration of a day in such a case is:a.πRg\pi \sqrt{\frac{R}{g}}πgRb.π2Rg\pi \sqrt{\frac{2R}{g}}πg2Rc.π2Rg\frac{\pi}{2} \sqrt{\frac{R}{g}}2πgRd.πgR\pi \sqrt{\frac{g}{R}}πRgLogin to continueOnly logged in users canattempt or see the solution.