(a) What is the principle upon which the lighting in fluorescent tubes operate?
(b) State two factors on which the colour of light from a fluorescent tube depends.
Verified Correct Answer: .
Physical Principles & Numerical Solution
(a) Electrical discharge through low pressure gas
(b)
- Nature of the gas in the tube
- Nature of the coating d inside the tube.
Source: Myschool Past Questions Archive (Record #54662)