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20 Jan 2012 15:44:06 IST

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Modern physics question

Physics

A He+ ion in its ground state is hit by an alpha particle. Find the minimum kinetic energy of the alpha particle for which the collision may not be perfectly elastic?

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Juhi Sharma

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Joined: 22 May 2009

Posts: 2064

13 May 2012 13:20:50 IST

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see the energy should not be lost in the collision for ellastic collision

now energy can only belost if their is electronic transiction

so minimum electronic transition should be 3*13.2 ev=39.6eV

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