Kat wants to buy a "dog whistle" that her dog can hear but she can't. She should get a whistle that emits sounds in the range between ____ and _____ Hz.
A) 100; 900
B) 1,000; 5,000
C) 15,000; 20,000
D) 30,000; 40,000

Question

Quizplus · Accepted Answer

Dogs can hear frequencies up to about 40,000 Hz, while humans typically hear up to 20,000 Hz. A whistle in the 30,000 to 40,000 Hz range would be audible to dogs but not to humans.

Kat Wants to Buy a "Dog Whistle" That Her Dog