Answer:
(a) [tex]\lambda=0.032\ m[/tex]
(b) v = 1064 m/s
Explanation:
(a) Frequency of electromagnetic wave, [tex]f=9.35\ GHz=9.35\times 10^9\ Hz[/tex]
Let [tex]\lambda[/tex] is the wavelength of electromagnetic wave. It can be calculated as :
[tex]c=f\lambda[/tex]
[tex]\lambda=\dfrac{c}{f}[/tex]
[tex]\lambda=\dfrac{3\times 10^8\ m/s}{9.35\times 10^9\ Hz}[/tex]
[tex]\lambda=0.032\ m[/tex]
(b) Frequency of medium, f = 532 Hz
Wavelength, [tex]\lambda=2\ m[/tex]
Let v is the speed of sound wave in an unknown fluid. Using the relation as :
[tex]v=f\lambda[/tex]
[tex]v=532\times 2[/tex]
v = 1064 m/s
Hence, this is the required solution.
