In a wave motion $y = a\sin (kx - \omega t)$, $y$ can represent
IIT 1999, Medium
Download our app for free and get started
(d) In case of sound wave, $y$ can represent pressure and displacement, while in case of an electromagnetic wave it represents electric and magnetic fields.
(In general $y$ is any general physical quantity which is made to oscillate at one place and these oscillations are propagated to other places also).
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
- 1A 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
- 2Two stationary sources each emitting waves of wave length $\lambda$. An observer moves from one source to other with velocity $u .$ Then number of beats heared by himView Solution
- 3The particle displacement of a travelling longitudional wave is represented by $\xi = \xi (x,t)$. The midpoints of a compression zone and an adjacent rarefaction zone are represented by the letter ‘$C’$ and $‘R’$. Which of the following is true?View Solution
- 4A bat moving at $10\,ms^{-1}$ towards a wall sends a sound signal of $8000\,Hz$ towards it. On reflection it hears a sound of frequency $f$. The value of $f$ in $Hz$ is close to (speed of sound $= 320\,ms^{-1}$ )View Solution
- 5The clocktower ("ghantaghar") of Dehradun is famous for the sound of its bell, which can be heard, albeit faintly, upto the outskirts of the city $8 \,km$ away. Let the intensity of this faint sound be $30 \,dB$. The clock is situated $80 \,m$ high. The intensity at the base of the tower is .............$\,dB$View Solution
- 6A hollow pipe of length $0.8 \mathrm{~m}$ is closed at one end. At its open end a $0.5 \mathrm{~m}$ long uniform string is vibrating in its second harmonic and it resonates with the fundamental frequency of the pipe. If the tension in the wire is $50 \mathrm{~N}$ and the speed of sound is $320 \mathrm{~ms}^{-1}$, the mass of the string isView Solution
- 7A motorcyclist is approaching a large wall with a velocity of $90\,km/hr$. A car is chasing him with a velocity of $108\,km/hr$. If the car sounds a horn at $30\,Hz,$ beat frequency heard by motorcyclist is ____ $Hz$ . Take velocity of sound $= 330\,m/s$ .View Solution
- 8The figure represents the instantaneous picture of a transverse harmonic wave traveling along the negative $x$-axis. Choose the correct alternative $(s)$ related to the movement of the nine points shown in the figure. The points moving with maximum velocity is/areView Solution
- 9The equation $\overrightarrow {\phi \,} (x,\,t) = \overrightarrow {j\,} \sin \,\left( {\frac{{2\pi }}{\lambda }v\,t} \right)\cos \,\left( {\frac{{2\pi }}{\lambda }x} \right)$ representsView Solution
- 10A sound absorber attenuates the sound level by $20\ dB$. The intensity decreases by a factor ofView Solution