In a cathode ray tube, the screen is coated with fluorescent material.

it produces spots on the screen

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beam of light is not in a straight line

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light deviates away after striking

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none of these

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Solution

The correct option is A it produces spots on the screen
When the electron beam strikes the screen coated with fluorescent material the electrical signals appear as visual pattern or spots on the screen.

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In a cathode ray tube, the screen is coated with fluorescent material.

The correct option is A it produces spots on the screen When the electron beam strikes the screen coated with fluorescent material the electrical signals appear as visual pattern or spots on the screen.

The correct option is A it produces spots on the screen
When the electron beam strikes the screen coated with fluorescent material the electrical signals appear as visual pattern or spots on the screen.