Question

Out of the following, which frequency is not clearly audible to the human ear ?

• A. $30Hz$
• B. $30,000Hz$
• C. $300Hz$
• D. $3000Hz$

Answer 1

The correct option is B $30,000Hz$

The frequency range of human hearing is about 20 Hz to 20 KHz. This range of frequency is known as audible range. Human cannot hear the sound with frequency above or below this audible range. Hence the sound with frequency 30,000 Hz cannot audible to human ear