One of the following can hear infrasound. This one is
(a) dog
(b) bat
(c) rhinoceros
(d) humans
One of the following can hear infrasound. This one is :
(a) dog (b) bat (c) rhinoceros (d) humans
(a) What is the upper limit of frequency of human hearing ?
(b) What is the lower limit of frequency of human hearing ?
(c) Name one animal which can produce ultrasonic sounds.
(d) Name two animals which can hear ultrasonic sounds.