Statement given below is incorrect. Write the correct statement. In order to produce an echo, the minimum distance between the source of sound and the reflecting body should be 14 m.
What minimum distance is required between the source of sound and the reflecting surface to hear an echo ? Give reason.
To hear an echo, the minimum distance between source and reflector in air is:
Fill in the blank space by choosing the correct word from the list given below : List: ultrasonic, frequency, reflecting, sonar, amplitude For hearing an echo the minimum distance between the source of sound and the _________ body is 17 m.
When a sound is reflected from a distant object, an echo is produced. Let the distance between the reflecting surface and the source of sound production remain the same. Do you hear echo sound on a hotter day ?
What should be the minimum distance between the source and reflector in water so that the echo is heard distinctly ? (The speed of sound in water = 1400 m s^(-1) ).
Calculate the minimum distance in air required between the source of sound and the obstacle to hear an echo. Take speed of sound in air = 350 m s^(-1)
A man standing between two cliffs produces a sound and hears two successive echoes at intervals of 3 s and 4 s respectively. Calculate the distance between the two cliffs. The speed of sound in the air is 330ms^(-1) .
A road runs midway between two parallel rows of buildings. A motorist moving with a speed of 36 Km/h sounds the horn. He hears the echo one second after he has sounded the horn: Then the distance between the two rows of buildings is. (Velocity of sound in air is 330 m/s)
A source of sound of frequency 1000 Hz moves to the right with a speed of 32(m)/(s) relative to the ground. To its right there is a reflecting surface moving to the left with a speed of 64(m)/(s) relative to the ground. Take the speed of 64(m)/(s) . Relative to the ground. Take the speed of sound in air to be 332(m)/(s) and find (a) The wavelength of the sound emitted in air by the source, (b) the number of waves per second arriving at the reflecting surface, (c ) The speed of the reflected waves and (d) The wavelength of the reflected waves.
