Which fluorescent material was used in Thomson’s cathode ray experiment?
A
FeS
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B
ZnS2
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C
ZnS
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D
FeS2
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Solution
The correct option is CZnS The presence of cathode rays were confirmed by making a hole in the anode which resulted in cathode rays striking the fluorescent zinc sulphide (ZnS) coating on the tube behind the anode.