question_answer

From a fixed support, two small identical spheres arc suspended   by means of strings of length 1 m each. They are pulled aside as shown and then released. B is the mean position. Then the two spheres collide,                            

A)  at B after 0.25 second                     

B)  at B after 0.5 second                      

C)  on the right side of B after some time

D)  on the right side of B when the strings are inclined at \[{{15}^{o}}\] with B