NDA2018General AbilityGeneral ScienceActual
Which one of the following frequency ranges is sensitive to human ears?
Options
- A0-200 ~Hz
- B20-20,000 ~Hz
- C200-20,000 ~Hz only
- D2,000 - 20,000 Hz only
Correct answer
B. 20-20,000 ~Hz
Step-by-step solution
Hearing is one of the five senses of the body. The ears help the body to pick up sound waves and vibrations. The number of vibrations that are produced per second is called frequency. Frequency varies for each sound and is measured in hertz. Humans cannot hear sounds of every frequency. The range of hearing for a healthy young person is 20 to 20,000 hertz.