PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free Demo1. What is the loudness of sound? What factors does it depend on?
The loudness of a sound is determined by its . It is proportional to the of sound.
2. Explain how bats use ultrasound to catch prey.
Bats produce , squeaks. These squeaks are by objects like prey and brought back to the ear of the bat. This helps the bat to understand his prey's distance.
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