Question

What are canal rays ? state the nature of the constituents of canal rays.(b) who discovered canal ray?

Answer 1

Anode Rays are called canal Rays.
It's constituents are +ve charge particles called protons
It was discovered by goldstein

Answer 2

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Canal rays are positively charged radiations.

These rays consist of positively charged particles known as protons.

They were discovered by Goldstein in 1886.

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