UPSC NDA I 2023 General Ability Solved Paper

Question : 88 of 150

Marks: +1, -0

Which one of the following statements is not true for a flute, a musical instrument?

Momentum of waves on the blowing jet determines the loudness of the produced note.
Arrival time of the waves on the blowing jet determines the pitch of the produced note.
Sound comes from a vibrating column of air inside the flute.
Sound comes from a vibrating column of air inside as well as outside the flute.

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