A cathode ray consists of electrons that have beenaccelerated from - to + charged plates. The speed at thenegative plate is 0, and an electron reaches the positiveplate with speed ß c.(A) Use classical mechanics. Calculate ß.(B) Use special relativity. Calculate B.Potential difference = 107 keV;(A) 0.647You are correct.Your receipt no. is 152-8546(b) 415Submit Answer Incorrect. Tries 8/12 Previous TriesPrevious Tries

Using classical mechanics, we can use the conservation of energy to find the speed of the electron…

Answered: A cathode ray consists of electrons…

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