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| 1. |
{:(1.,"Infrasonic",-,(a),"Compressions"),(2.,"Echo",-,(b),22kHz),(3.,"Ultrasonic",-,(c),10Hz),(4.,"High pressure region",-,(d),"Ultrasonography"):} |
| Answer» Solution :1. (c) 10HZ 2. (d) ULTRASONOGRAPHY 3.(B) 22kHZ 4. (a) Compressions | |