One of the harmonic frequencies of tube A with two openends is 836 Hz. The next-highest harmonic frequency is 912 Hz.(a) What harmonic frequency is next highest afterthe harmonic frequency 228 Hz? (b) What is thenumber of this next-highest harmonic? One of the harmonicfrequencies of tube B with only one open end is 2940 Hz.The next-highest harmonic frequency is 3220 Hz.(c) What harmonic frequency is next highest afterthe harmonic frequency 3780 Hz? (d) What is thenumber of this next-highest harmonic?