1.

Which of the following statements is not correct regarding cathode rays?

Answer»

The rayscarry NEGATIVE charge
The charge/ mass of these rays is CONSIDERABLY SMALLER than for positive rays
The rays produce mechanical effect
The charge /mass RATIO is independent of the nature of the gas taken in the discharge tube.

Solution :The charge / mass ratio for cathode rays is larger than for the positive rays because cathode rays have SMALL mas in comparison to positive rays while both have same charge.


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