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Consider the following statements: An ordinary light bulb has a rather short life because the: 1. filament wire is not uniform 2. bulb cannot be a evacuated completely 3. wires supporting the filament melt at high temperatures Which of the above statements are correct?
Correct Answer: (b)
Official keyThis question appeared in the MNPSC Prelims 2014 examination (GS). It is Question 64 out of 200 questions in this paper.
This question was part of the MNPSC Prelims 2014 (GS). The MNPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all MNPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.