Advertisements
Advertisements
प्रश्न
What do you mean by an echo?
Advertisements
उत्तर
When the sound strike any object and reflect back, the hearing of reflected sound is called echo.
APPEARS IN
संबंधित प्रश्न
Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.
Select the correct alternative :
We can hear sound of frequency
What is sound ?
To detect the obstacles in their path, bats produce ______.
What change do you expect in the characteristic of a musical sound if its frequency is increased?
Describe a simple experiment to determine the speed of sound in air. What approximation is made in the method described by you?
Select the correct option:
Which of the following is an elastic wave?
Name three animals which can hear ultrasonic vibrations.
A list of mediums is given below.
- wood
- water
- air
- vacuum
In which of these mediums can sound travel?
