2018 · Q28
Bright light is found to emit from photographer’s flashgun. This brightness is due to the presence of which one of the following noble gases?
General KnowledgeChemistry
- AArgon
- BXenon
- CNeon
- DHelium
Explanation
A photographer's flashgun uses a xenon flash tube: a high-voltage discharge through xenon gas produces the intense burst of bright light. Argon, neon and helium are not used for this purpose. Hence the answer is xenon.