Flourescent tubes produces light by the
A
excitation of gas molecules
B
conduction of solar energy
C
refraction of light by gas molecules
D
thermal agitation of electron in the tubes
Verified Correct Answer: A.
Physical Principles & Numerical Solution
Electricity excites the gas atoms inside the tube, causing them to release UV light. This UV light then hits a phosphor coating on the glass, which glows to produce visible light.
Source: WAEC / JAMB / NECO Classroom Archive (Record #12797)