Humans can hear frequencies between which of the following ranges?

Humans are capable of hearing sound frequencies that range from approximately 20 Hz (cycles per second) to 20,000 Hz (20 kHz). This range encompasses the majority of sounds we encounter in our daily lives, allowing us to perceive everything from low bass notes to high-pitched sounds.

The frequencies outside this range, such as those mentioned in the other choices, are either too low for human hearing (like 50 Hz or below) or too high (like 50,000 Hz or above), which falls into the ultrasonic range, a realm that humans cannot detect. This understanding of the human auditory range is fundamental in the study of sensation and perception, demonstrating how our sensory systems are adapted to function within specific environmental parameters.