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A sound wave has frequency of 4 kHz and its wavelength is 35 cm, then how much time will it take to travel a distance of 3 km?
Correct Answer: (b)
Official keyThis question appeared in the CGPSC Prelims 2021 examination (GS). It is Question 95 out of 100 questions in this paper.
This question was part of the CGPSC Prelims 2021 (GS). The CGPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all CGPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.