What Are the Wavelength (In Meters)and Frequency (In Hertz)of a Wave

question 152

Multiple Choice

What are the wavelength (in meters) and frequency (in hertz) of a wave whose displacement is given by the equation y = 0.5 sin(0.20x + 120t) ,where x and y are in meters and t is in seconds?

• A)10 m, 0.50 Hz
• B)5.0 m, 10 Hz
• C)19 m, 120 Hz
• D)31 m, 19 Hz
• E)0.20 m, 120 \(\sqrt { 2 \pi }\) Hz

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