MCQ
To raise the pitch of a stringed musical instrument the player can
  • A
    Loosen the string
  • B
    Tighten the string
  • C
    Shorten the string
  • Both $(b)$ and $(c)$

Answer

Correct option: D.
Both $(b)$ and $(c)$
d
(d) Higher pitch means higher frequency

Frequency of a stringed system is given by

$n = \frac{p}{{2l}}\sqrt {\frac{T}{m}} \Rightarrow n \propto \frac{{\sqrt T }}{l}$

Hence, to get higher frequency (higher pitch) tension should be increase and length should be shorten.

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