The figure shows four progressive waves A, B, C, and D with their phases expressed with respect to the wave A. It can be concluded from the figure that [CPMT 1986, 88]

\[1\,:\frac{4}{9\,{{\pi }^{2}}}:\frac{4}{25\,{{\pi }^{2}}}\]

The wave C is ahead by a phase angle of p/2 and the wave B lags behind by a phase angle of p /2

The wave C lags behind by a phase angle of p/2 and the wave B is ahead by a phase angle of p /2

\[1\,:\frac{4}{9\,{{\pi }^{2}}}:\frac{4}{25\,{{\pi }^{2}}}\]

The wave C lags behind by a phase angle of pand the wave B ahead by a phase angle of p

The figure shows four progressive waves A, B, C, and D with their phas

1.	The figure shows four progressive waves A, B, C, and D with their phases expressed with respect to the wave A. It can be concluded from the figure that [CPMT 1986, 88]
A.	The wave C is ahead by a phase angle of p/2 and the wave B lags behind by a phase angle of p /2
B.	The wave C lags behind by a phase angle of p/2 and the wave B is ahead by a phase angle of p /2
C.	\[1\,:\frac{4}{9\,{{\pi }^{2}}}:\frac{4}{25\,{{\pi }^{2}}}\]
D.	The wave C lags behind by a phase angle of pand the wave B ahead by a phase angle of p
Answer» C. \[1\,:\frac{4}{9\,{{\pi }^{2}}}:\frac{4}{25\,{{\pi }^{2}}}\]

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The figure shows four progressive waves A, B, C, and D with their phases expressed with respect to the wave A. It can be concluded from the figure that [CPMT 1986, 88]

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