Dual Nature of Radiation and Matter

Question: An electron initially at rest, is accelerated through a potential difference of 200 volt, so that it acquires a velocity $8.4 \times {10^6}m/s.$ The value of e/m of electron will be

1) $2.76 \times {10^{12}}C/kg$

2) $1.76 \times {10^{11}}C/kg$

3) $0.76 \times {10^{12}}C/kg$

4) None of these

Solution:

Explanation: No Explanation

Cathode Rays and Positive Rays

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