Question

Assertion (A): Pitch is the shrillness of a note. The high or low sound is determined by its amplitude.

Reason (R): Pitch is one’s judgement of how high or low a sound is, and is subjective entity incapable of physical measurement.

Options

• If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

• If both Assertion and Reason are true, but Reason is not correct explanation of the Assertion.

• If Assertion is true, but the Reason is false.

• If Assertion is false, but the Reason is true.

Answer 1

If Assertion is false, but the Reason is true.

Explanation:

Assertion (A) is false. Pitch is the sensation of how high or low (shrill or deep) a sound is, and it depends on frequency, not amplitude. Amplitude mainly affects loudness.

Reason (R) is true. Pitch is a subjective sensation of how high or low a sound appears to a listener and is not itself measured directly as a physical quantity.

Therefore, A is false, but R is true.