The intensity of sound is the amount of sound energy passing through unit area per unit time.

No, the speed of sound remains almost the same for all frequencies in a given medium under the same physical conditions.

The wavelength (λ) of a sound wave is the distance traveled by the wave in one time period (T).

The speed of sound is defined as the distance a point on a wave travels per unit time, usually represented by λ/T.

Noise is unpleasant, while music, with its rich quality, is pleasant to hear.