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प्रश्न
What is echolocation? How do animals make use of this phenomenon?
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उत्तर
Echolocation is defined as sending out sounds to judge the location, size, and motion of objects from the returning echoes. The animals use this phenomenon to locate the obstacles in their path and avoid them so it helps them in navigation and to locate their prey.
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संबंधित प्रश्न
Write the audible range of frequency for the normal human ear.
Give two examples each of longitudinal waves and transverse waves.
Distinguish between compression and rarefaction.
What do you mean by the audible range of frequency?
Select the correct option:
If the frequency of a wave is 25 Hz. the total number of compressions and rarefactions passing through a point in 1 second is :
Vibration of object produces ______.
Unwanted sounds are called ______.
Assertion: The sound of thunder is heard a little later than the flash of light.
Reason: The speed of sound is much less than the speed of light.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
