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Question
why cannt we use liquid in cathode ray formation?
why cannt we use liquid in cathode ray formation?
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Solution
A cathode ray formation occurs by collision of ions with molecules and thereby knocking off electrons present in them, when accelerated by the electric field. Now if liquids are allowed to be inside the tube, the ions would undergo electrolysis in the first place. Secondly, because of the dense nature of liquids, they have tightly packed molecules and high vapour pressure electrical conductivity will be sufficiently low. Also, liquid electrons will collide all the time with molecules in its movement in the tube and we wont be able to get a cathode ray at all.
A cathode ray formation occurs by collision of ions with molecules and thereby knocking off electrons present in them, when accelerated by the electric field. Now if liquids are allowed to be inside the tube, the ions would undergo electrolysis in the first place. Secondly, because of the dense nature of liquids, they have tightly packed molecules and high vapour pressure electrical conductivity will be sufficiently low. Also, liquid electrons will collide all the time with molecules in its movement in the tube and we wont be able to get a cathode ray at all.
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