HW 10 : 4 : Please help me answer this question: tem 4 Electromagnetic waves and

Question

HW 10 : 4 : Please help me answer this question:

tem 4 Electromagnetic waves and sound waves can have the same frequency. Part A What is the wavelength of a 1.05kHz electromagnetic wave? Express your answer with the appropriate units. AEM Value Units Submit My Answers Give Up Part B What is the wavelength of a 1.05kHz sound wave? (The speed of sound in air is 341 m/s.) Express your answer with the appropriate units. Value Units Submit My Answers Give Up Part C Can you hear a 1.05kHz electromagnetic wave? O yes Submit My Answers Give Up Provide Feedback Continue

Explanation / Answer

A) The wave length is

Lambda =c/f=3*10^8/1.05*10^3=2.85*10^5 m

B)The wave length is

Lambda =c/f=341/1.05*10^3=0.325 m

Since the frequency is in audialbe range, we can hear the EM wave

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