(1) Two small spheres with masses m1 and m2 hang on weightless insulating threads with l1 and l2.The two spheres carry a charge of q1 and q2 respectively.The spheres hang such that they at are level with one another and the threads are inclined to the vertical at angles θ1 and θ2.Which of the following condition is required for θ1 and θ1 to be equal?
(a) m1=m2
(b) q1=q2
(c) l1=l2
(d) none of these
(1) Two small spheres with masses m1 and m2 hang on weightless insulating threads with l1 and l2.The two spheres carry a charge of q1 and q2 respectively.The spheres hang such that they at are level with one another and the threads are inclined to the vertical at angles θ1 and θ2.Which of the following condition is required for θ1 and θ1 to be equal?
(a) m1=m2
(b) q1=q2
(c) l1=l2
(d) none of these