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प्रश्न
What is meant by echo depth sounding?
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उत्तर
The method by which the position of an obstacle hidden in water is located is known as echo depth sounding.
संबंधित प्रश्न
State two factors on which the speed of a wave travelling in a medium depends.
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Name two sound absorbing materials (or objects) which can make our big room less echoey.
A cork piece is floating on the surface of the water in a pond. A piece of pebble is dropped into the water. What will be your observation?
A radio signal, sent towards the surface of the moon, is received in 2.5 seconds. If the speed of the radio waves is 3 × 108 ms−1, find the distance of the moon from the earth.
Waves produced on the surface of the water are formed to move with a velocity of 24 ms−1. If the wavelength of these waves equals 20 cm. find the
(i) frequency (no. of waves produced per second)
(ii) the time period (i.e. the time required to produce one wave) for these waves.
