A) find the wavelength of an electromagnetic wave with frequency 9.35 ghz = 9.35 109 hz (g = giga = 109), which is in the microwave range. λ = m
(b) find the speed of a sound wave in an unknown fluid medium if a frequency of 532 hz has a wavelength of 2.00 m.

(a)

(b) v = 1064 m/s                                                                

Explanation:

(a) Frequency of electromagnetic wave,

Let is the wavelength of electromagnetic wave. It can be calculated as :

(b) Frequency of medium, f = 532 Hz

Wavelength,

Let v is the speed of sound wave in an unknown fluid. Using the relation as :

v = 1064 m/s

Hence, this is the required solution.