2.  A pipe closed at one end and open at other will give a. All even harmonics b, All odd harmonics c. All the harmonics d. None of the harmonics

3.  You will still have 1 st harmonic, 2nd harmonic,..  The only thing that changes is only ¼ of the wavelength enters the container

4.  To raise the pitch of a stringed musical instrument,the player can a. Loosen the string and Lengthen the string b. Tighten the string and Shorten the string

5.  Tighten and shorten the string  Pitch is how our brains interrupt frequency, so we are taking about how to increase frequency  f= n ( v/ 2L) so reducing length increases frequency  V= ( F/ m/L)^.5  v/ wavelength = frequency

6.  You have a long and short pipe. Both are open at the one end and closed at the other. Which pope has the higher frequency.

7.  The shorter one  F= n ( v/ 4 L)