Question

Infrasound can be heard by

• A. Dog
• B. Bat
• C. Rhinoceros
• D. Human beings

Answer 1

The correct option is C

Rhinoceros

The explanation for the correct option

Option (C) : Rhinoceros

1. Infrasound is a low-frequency sound of a range below 20 Hz.
2. Rhinoceros is a fine ear-sensitive animal that can hear sounds of a range below 20 Hz.
3. So, rhinoceros can communicate via infrasonic sounds perfectly.

The explanation for the incorrect options

Option(D) : Human beings

1. The sound hearing range of a human is from 20 Hz to 20000 Hz. So infrasounds are not detectable by human ears.

Option (A) and Option (B) : Dog and Bat

1. The lower hearing limits of dogs and bats are not below 20 Hz, so they can't hear infrasound.

Thus, option (C) is correct.