Class 10 physics Practice Tests
Class 10 Physics Online Tests
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The MCQ To communicate with each other, Elephants use: low frequency sound waves, low frequency light waves, high frequency sound waves and low frequency heat waves with "Echo of Sound" App Download (Free) for online school and college. Study sound quiz questions, download Amazon eBook (Free Sample) for online school courses.
MCQ 1: To communicate with each other, Elephants use
MCQ 2: When sound is incident on the surface of a medium it bounces back into the first medium. The phenomenon is called
MCQ 3: The total distance covered by the sound from the point of generation to the reflecting surface and back should be at least
MCQ 4: For hearing distinct echoes, the minimum distance of the obstacle from the source of sound must be
MCQ 5: Echoes may be heard more than once due to successive or multiple reflections
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