An alpha particle after passing through a potential difference
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An alpha particle after passing through a potential difference of 2 * 10^6. An alpha particle after passing through a potential difference of 2 * 10^6 volt falls on a silver foil. The atomic number of silver is 47. ... 3) The shortest distance from the nucleus of silver to which the alpha-particle reaches.
Answer:An alpha particle after passing through a potential difference of 2 * 10^6 volt falls on a silver foil. The atomic number of silver is 47. Calculate: 1) The K.E. of the alpha-particle at the time of falling on the foil. 2) K.E. of the alpha-particle at a distance of 5 * 10^-14 m from nucleus. 3) The shortest distance from the nucleus of silver to which the alpha-particle reaches.
answer;Given
Potential difference = 2×106
Atomic number of silver = 47
Charge of alpha particle=2e
Charge of silver = 47e(1)
Mass of alpha particle = 12mv2=2×1.6×10−19×2×106=6.4×10−13
K.E at A = K.E at B + P.E AT B
6.4×10−13 = K.E AT B + P.E at B
K.E at B = 2.1×10−13 joules
Explanation: