A deutron and an alpha particle are placed in an electric field. The force acting on them are F1 and F2 and their accelerations are a1 and a2 respectively, then
(a) F1=F2
(b) F1 is greater than F2
(c) a1=a2
(d) a1 is less than a2
Two very small spheres A and B are charged with +10C and +20 C respectively and separated by a distance of 80cm.The electric field at point on the line joining the centres of two spheres will be zero at almost much distance from A?
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