Wavelength increases but the frequency is not affected

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Reference no: EM13679211

A guitar is fixed at both ends. If you tighten it to increase its tension.

a) Both the frequency and the wavelength increase

b) The wavelength increases but the frequency is not affected

c) The frequency of its vibration mode will increase buts its wavelength will not be affected

Please explain why

Reference no: EM13679211

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