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प्रश्न
Explain how the principle of echo is used by
The bat during its flight at night
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उत्तर
Bats emits its own distinctive sounds. The echoes of the sound help bat to navigate and to locate their prey during night.
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संबंधित प्रश्न
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
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