A Source of Frequency F Sends Waves of Wavelength $\lambda$ Traveling with Speed V in Some Medium

question 21

Multiple Choice

A source of frequency f sends waves of wavelength $\lambda$ traveling with speed v in some medium.If the frequency is changed from f to 2f, then the new wavelength and new speed are (respectively) :

• A)"2\(\lambda\), v"
• B)"\(\lambda\)/2, v"
• C)"\(\lambda\), 2v"
• D)"\(\lambda\), v/2"
• E)"\(\lambda\)/2, 2v"

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