An electron of mass m is involved in head-on collision with an atom of mass M , initially at rest . As a result of the collision a certain amount of energy E is stored internally in the atom . What is the minimum initial velocity that the electron must have ? [Hint : Since energy is stored in the atom , the collision is essentially inelastic . mv = mv' + Mv'' and (1)/(2) mv^(2) = E + (1)/(2) mv^(2) + (1)/(2) Mv''^(2) . Solve for v' and apply the condition for real values of v'.)

An electron of mass m is involved in head-on collision with an atom of

1.	An electron of mass m is involved in head-on collision with an atom of mass M , initially at rest . As a result of the collision a certain amount of energy E is stored internally in the atom . What is the minimum initial velocity that the electron must have ? [Hint : Since energy is stored in the atom , the collision is essentially inelastic . mv = mv' + Mv'' and (1)/(2) mv^(2) = E + (1)/(2) mv^(2) + (1)/(2) Mv''^(2) . Solve for v' and apply the condition for real values of v'.)
Answer» <html><body><p><br/></p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :`<a href="https://interviewquestions.tuteehub.com/tag/sqrt-1223129" style="font-weight:bold;" target="_blank" title="Click to know more about SQRT">SQRT</a>((<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>(m + M) <a href="https://interviewquestions.tuteehub.com/tag/e-444102" style="font-weight:bold;" target="_blank" title="Click to know more about E">E</a>)/(<a href="https://interviewquestions.tuteehub.com/tag/mm-1098795" style="font-weight:bold;" target="_blank" title="Click to know more about MM">MM</a>))`</body></html>