Question

In the following questions, a statement of assertion followed by the reason is given. Choose the correct answers out of the following choices:

Assertion: A human being cannot hear sound having frequencies lower than 20 Hz.

Reason: The audible limit for a normal human being is 20 Hz to 20 kHz.

• A. Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.
• B. The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.
• C. Assertion is true but the Reason is false.
• D. The statement of the Assertion is false but the Reason is true.
• E. Both the statements are false.

Answer 1

The correct option is A

Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

1. A human being cannot hear sound having frequencies lower than 20 Hz and greater than 20000 Hz.
2. This is called the audible range of human being.
3. But many animals like bats, dogs, etc can hear the ranges of sound which is inaudible to humans.
4. The audible limit for a normal human being is 20 Hz to 20 kHz.
5. Thus, both the assertion and reason are correct and the reason is the correct explanation of assertion.
6. Hence, option A is correct.