Two independent harmonics oscillators of equal mass are oscillating about the origin with angular frequencies $w_1$ and $w_2$ and have total energies $E_1$ and $E_2$ respectively. The variation of their momentum $p$ will positions $x$ are shown in figure 23.88. If $\frac{a}{b}=n^2 \mathrm{and} \frac{a}{R}=n$, then the correct equation(s) is (are)

A transverse wave is travelling along a string from left to right. The below figure represents the shape of the string at a given instant. $A$, $B$, $C$, $D$, $E$, $F$, $G$ and $H$ are points on the string. At this instant, which of the above points have an upward velocity?

A transverse wave is travelling along a string from left to right. The below figure represents the shape of the string at a given instant. $A$, $B$, $C$, $D$, $E$, $F$, $G$ and $H$ are points on the string. At this instant, which of the above points have a downward velocity?

A transverse wave is travelling along a string from left to right. The below figure represents the shape of the string at a given instant. $A$, $B$, $C$, $D$, $E$, $F$, $G$ and $H$ are points on the string. At this instant, which of the above points have zero velocity?