![Colour of fluorescene produced by cathode rays depends upon](https://www.gkseries.com/blog/wp-content/uploads/2022/01/Colour-of-fluorescene-produced-by-cathode-rays-depends-upon.png)
Q. Colour of fluorescene produced by cathode rays depends upon
A. Temperature
B. Pressure
C. Volume
D. Composition of glass
Answer: Composition of glass
A. Temperature
B. Pressure
C. Volume
D. Composition of glass
Answer: Composition of glass
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