Question

these are the two subjective qualities of sound

intensity and loudness

frequency and pitch

loudness and frequency

pitch and loudness

Explanation:

• Loudness: It is a subjective perception of how strong a sound seems to an individual. It depends on the amplitude of the sound wave. Higher - amplitude waves are generally perceived as louder.
• Pitch: It is the subjective quality of a sound related to the frequency of the sound wave. Higher - frequency sounds are perceived as having a higher pitch.

• Intensity: It is an objective measure (power per unit area) and not a subjective quality.
• Frequency: It is an objective physical quantity (number of oscillations per second) and not a subjective quality.

Answer:

pitch and loudness