1.

The equation \[y=A{{\cos }^{2}}\left( 2\pi \ nt-2\pi \frac{x}{\lambda } \right)\] represents a wave with                                                                                [KCET 2002]

A.            Amplitude A/2, frequency \[2n\] and wavelength \[\lambda /2\]
B.            Amplitude A/2, frequency \[2n\] and wavelength \[\lambda \]
C.            Amplitude A, frequency \[2n\] and wavelength \[2\lambda \]
D.            Amplitude A, frequency \[n\] and wavelength \[\lambda \]
Answer» B.            Amplitude A/2, frequency \[2n\] and wavelength \[\lambda \]


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