Question

Refer to the chart and name the animal sounds that man cannot imitate.

Answer 1

If we read graph carefully we find that dolphin makes sounds ranging from 10000Hz to above 140,000Hz approximately , bat makes sounds ranging from 10000Hz to 10,000Hz approximately , and grasshopper makes sounds ranging from 10000Hz to 100000Hz . Audible range for a man ranges from 20Hz to 20,000Hz . As all these three animals (dolphin, grasshopper and bat) makes sounds of frequencies greater than 20,000Hz , therefore man cannot imitate them .