Physics
The condition for reflection of sound wave is :
- surface must be smooth
- surface must be polished
- reflecting surface must be bigger than the wavelength of the sound wave
- reflecting surface must be smaller than the wavelength of the sound wave
Sound
20 Likes
Answer
reflecting surface must be bigger than the wavelength of the sound wave
Reason — For sound waves to reflect off a surface, the size of the reflecting surface must be larger than the wavelength of the sound wave because when the size of the reflecting surface is comparable to or smaller than the wavelength of the sound wave, the wave tends to spread out rather than reflecting cleanly.
Answered By
15 Likes
Related Questions
Due to vibrations of medium particles, the energy transformation is from :
- heat energy to kinetic energy and vice versa
- kinetic energy to potential energy and vice versa
- heat energy to potential energy and vice versa
- potential energy to nuclear energy and vice versa
With the increase in temperature of a gas, the speed of sound:
- decreases
- increases
- remains the same
- cannot say
For an echo, the reflected sound must reach the person at least …………… after the original sound is heard.
- 1 s
- 10 s
- 0.1 s
- 0.01 s
Time taken to hear the echo if distance between the listener and the obstacle d is given by :
t = d x V
t = 2d x V
t =
t =