Concepts Of Physics MCQ Edition [Volume 2]PhysicsElectric Current through Gases

Cathode rays consist of a stream of

Options

Aelectrons
Bpositive ions
Cnegative ions
Dprotons

Correct answer

A. electrons

Step-by-step solution

Cathode rays are streams of fast-moving electrons emitted from the cathode of a discharge tube at very low pressure. Therefore, cathode rays consist of a stream of electrons.

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