A string is fastened tightly between two walls 24cm apart. The wavelength of the second overtone is

Yemadex11

12 years ago

Yes! B is D ans ... Jst do it in dis way.L=3waveL/2 waveL=2L/3.. Where our L is given as 24 so WaveL=2*24/3=16

ngenebenjamin

3 years ago

where Length 'L'= 24cm
therefore :.
From F=v/^
at fundamental frequency ^=2L
fundamental frequency [1st harmonic]fo= V/2L or ^/2L, Since ^=2L
first overtone (2nd harmonic) f1 = is Fundamental frequency ×2, since it's second harmonic
second overtone (3rd harmonic) f2 = fundamental frequency ×3, Since it's third Harmonic

where the symbol (^) signifies wavelength
hence the wavelength of the second overtone or third Harmonic is 3^/2L i.e 3^=2L hence the wavelength will be ^=2L/3 which will give us 2x24/3 = 16

Ike_Nna

3 years ago

I really don't get this explanation

Cybourg

1 year ago

The easy way to solve
^=2l/3
^=2*24/3
^=48/3
^=16

sapientia001

4 months ago

ok

s.samuel

3 years ago

Someone should please explain

Nnedum2007

1 year ago

pls this question is under which topic