NEET Physics Nuclei Questions Solved


A nucleus of Po84210 originally at rest emits α particle with speed v. What will be the recoil speed of the daughter nucleus 
(a) 4v/206            (b) 4v/214
(c) v/206              (d) v/214

(a) Po84210X82206+He24

Using conservation of linear moments

206 v' + 4v = 0 v'=-4v206v'=4v206

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