If two waves of same frequency and same amplitude respectively, on superimposition produced a resultant disturbance of the same amplitude, the waves differ in phase by
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An open pipe resonates with a tuning fork of frequency $500 Hz$. it is observed that two successive nodes are formed at distances $16$ and $46 cm $ from the open end. The speed of sound in air in the pipe is ..... $m/s$
A stationary sound source $'s'$ of frequency $334\,\, Hz$ and a stationary observer $'O'$ are placed near a reflecting surface moving away from the source with velocity $2\,\, m/sec$ as shown in the figure. If the velocity of the sound waves is air is $V = 330\,\, m/sec$, the apparent frequency of the echo is ... $Hz$
Two vibrating strings of the same material but lengths $L$ and $2L$ have radii $2r$ and $r$ respectively. They are stretched under the same tension. Both the strings vibrate in their fundamental modes, the one of length $L$ with frequency $n_1$ and the other with frequency $n_2$. The ratio $n_1/n_2$ is given by
The length of a son meter wire $AB$ is $110\; cm$. Where should the two bridges be placed from $A$ to divide the wire in $3$ segments whose fundamental frequencies are in the ratio of $1:2:3$?
A standing wave pattern of amplitude $A$ in a string of length $L$ shows $2$ nodes (plus those at two ends). If one end of the string corresponds to the origin and $v$ is the speed of progressive wave, the disturbance in the string, could be represented (with appropriate phase) as: