2003 General Studies, all questions
UPSC Prelims 2003 · General Studies
Question 63: Science and Technology
Which one of the following statements is correct?
aThe velocity of sound in air increases with the increase of temperature
bThe velocity of sound in air is independent of pressure
cThe velocity of sound in air decreases as the humidity increases
dThe velocity of sound in air is not affected by the change in amplitude and frequency
The published answer to this question looks wrong to us, so none is shown until it has been checked.
Source: UPSC, Civil Services (Preliminary) Examination 2003, General Studies. UPSC's own paper isn't online; the words are from a published compilation. The paper on upsc.gov.in.