The sulphide that is commonly used in coating electric fluorescent tubes is?
A
iron(ii)Sulphide
B
tin(ii)sulphide
C
Zinc Sulphide
D
lead(iv) Sulphide
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
ZnS (Zinc Sulfide) screen was used because it emits a flash of light when struck by an alpha particle.
This is a phenomenon called Radio luminescence in which a flash of light is observed on the screen when acted upon by a radioactive substance.
Source: WAEC / JAMB / NECO Classroom Archive (Record #64907)