JEE Main Physics question
Two negatively charged particles having charges and , and masses and respectively, are projected one after another into a region with equal initial velocity. The electric field is along the -axis, while the direction of projection makes an angle with the -axis. If the ranges of the two particles along the -axis are equal, then one can conclude that
Answer: (D)
Solution
Each particle undergoes projectile-like motion with acceleration along , and the range (for fixed initial velocity and angle) depends only on this acceleration. Equal
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