The frequency of a man’s voice is 300 Hz and its wavelength is 1 meter. If the wavelength of a child’s voice is 1.5 m, then the frequency of the child’s voice is:

Question

The frequency of a man’s voice is 300 Hz and its wavelength is 1 meter. If the wavelength of a child’s voice is 1.5 m, then the frequency of the child’s voice is: (A) 200 Hz (B) 150 Hz (C) 400 Hz (D) 350 Hz

Tardigrade Admin · Accepted Answer

f1 λ1= f2 λ2 (300)(1)=(f2)(1.5) 200 Hz =f2

Q. The frequency of a man’s voice is $300 Hz$ and its wavelength is 1 meter. If the wavelength of a child’s voice is $1.5 m$ , then the frequency of the child’s voice is:

200 Hz

150 Hz

400 Hz

350 Hz

$f_{1} λ_{1} = f_{2} λ_{2}$
$(300) (1) = (f_{2}) (1.5)$
$200 Hz = f_{2}$

Q. The frequency of a man’s voice is 300Hz and its wavelength is 1 meter. If the wavelength of a child’s voice is 1.5m, then the frequency of the child’s voice is: