BALGANESH: the concept is this: the alpha particles which move close to the nucleus get deflected by large angles...those which pass furthe away do not get deflected @ all.. this is because the force on the alpha particles close to the nucleus have the effect of nucleus...those away from nucleus do not suffer nuclear force as these r short range forces...4 those alpha particles which r not close to the nucleus force is only due to electrons..the acc due to which is negligible as the particles have very high mass.. velocity is not a factor..pl refer my prev post
Moderation Team
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