Goldstein used a modified type of discharge tube with a perforated cathode. He observed that certain rays travel in a direction opposite to that of the cathode rays. These rays are called ________ .
A
anode rays
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B
alpha rays
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C
beta rays
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D
gamma rays
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Solution
The correct option is A anode rays
In this picture, we can see that the Goldstein used a modified discharge tube. The anode rays are travelling in the direction opposite to that of the cathode rays.