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

Q: 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

b (b) Equation of $A, B, C$ and $D$ are ${y_A} = A\sin \omega t$, ${y_B} = A\sin (\omega t + \pi /2)$ ${y_C} = A\sin (\omega t - \pi /2)$, ${y_D} = A\sin (\omega t - \pi )$ It is clear that wave $C$ lags behind by a phase angle of $\pi /2$ and the wave $B$ is ahead by a phase angle at $\pi /2$.

SECTION - A [PHYSICS - MCQ]

GSEB - English Medium

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

AThe wave $C$ is ahead by a phase angle of $\pi /2$ and the wave $B$ lags behind by a phase angle of $\pi /2$
BThe wave $C$ lags behind by a phase angle of $\pi /2$ and the wave $B$ is ahead by a phase angle of $\pi /2$
CThe wave $C$ is ahead by a phase angle of $\pi$ and the wave $B$ lags behind by a phase angle of $\pi$
DThe wave $ C$ lags behind by a phase angle of $\pi$ and the wave $B$ ahead by a phase angle of $\pi$

Medium

STD 11 Science
NEET
STD 11 - 14. waves and sound
Physics

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