Two waves of amplitudes $A_0$ and $x A_0$ pass through a region. If $x > j _0$ the difference in the maximum and minimum resultant amplitude possible is
Medium
Download our app for free and get started
(d)
Amplitudes are $A_0$ and $x A_0$
$\therefore$ Maximum amplitude where they are/n phase are $A_0+x A_0$. Minimum amplitude $x A_0-A_0$
Difference between the two $=2 A _0$.
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1Two cars are approaching each other at an equal speed of $7.2\, km / hr$. When they see each other, both blow horns having frequency of $676\, Hz$. The beat frequency heard by each driver will be $.....\, Hz$. [Velocity of sound in air is $340\,m / s .]$View Solution
- 2The fundamental frequency of a closed organ pipe of length $20\; cm$ is equal to the second overtone of an organ pipe open at both the ends. The length of organ pipe open at both the ends is ...... $cm$View Solution
- 3A mass of $20\ kg$ is hanging with support of two strings of same linear mass density. Now pulses are generated in both strings at same time near the joint at mass. Ratio of time, taken by a pulse travel through string $1$ to that taken by pulse on string $2$ isView Solution
- 4$A$ and $B$ are two sources generating sound waves. A listener is situated at $C$ . The frequency of the source at $A$ is $500\,Hz$ . $A,$ now, moves towards $C$ with a speed $4\,m/s.$ The number of beats heard at $C$ is $6.$ When $A$ moves away from $C$ with speed $4\,m/s,$ the number of beats heard at $C$ is $18.$ The speed of sound is $340\,m/s.$ The frequency of the source at $B$ is ..... $Hz$View Solution
- 5The string of a violin has a frequency of $440 \,cps$. If the violin string is shortened by one fifth, its frequency will be changed to ........... $cps$View Solution
- 6A string $2.0\, m$ long and fixed at its end is driven by a $240\, Hz$ vibrator. The string vibrates in its third harmonic mode. The speed of the wave and its fundamental frequency isView Solution
- 7A plane wave $y=A\,\, sin\,\, \omega \left( {t - \frac{x}{v}} \right)$ undergo a normal incidence on a plane boundary separating medium $M_1$ and $M_2$ and splits into a reflected and transmitted wave having speeds $v_1$ and $v_2$ thenView Solution
- 8Regarding speed of sound in gas match the followingView Solution
$(A)$ Temperature of gas is made $4$ times and pressure $2$ times $(P)$ speed becomes $2\sqrt 2$ times $(B)$ Only pressure is made $4$ times without change in temperature $(Q)$ speed become $2$ times $(C)$ Only temperature is changed to $4$ times $(R)$ speed remains unchanged $(D)$ Molecular mass of the gas is made $4$ times $(S)$ speed remains half - 9Two tuning forks $A$ and $B$ vibrating simultaneously produce $5$ beats. Frequency of $B$ is $512.$ It is seen that if one arm of $A$ is filed, then the number of beats increases. Frequency of $A$ will beView Solution
- 10A siren emitting sound of frequency $500 \;Hz$ is going away from a static listener with a speed of $50\, m/sec$. The frequency of sound to be heard, directly from the siren, is .... $Hz$View Solution