NCERT Exemplar Solutions Class 9 Science Solutions for Sound - Exercise in Chapter 12 - Sound

Question 8 Sound - Exercise

Infrasound can be heard by

(a) dog

(b) bat

(c) rhinoceros

(d) human beings


The answer is (c) rhinoceros


Infrasound has a frequency less than 20 Hz and Rhinoceroses communicate using Infrasound waves of frequency of 5 Hz hence rhinoceros is the right answer.

Video transcript
"hello everyone welcome to leader learning i'm good preet your science tutor today's question is infrasound can be heard by a dog b bat c rhinoceros a d human beings so here four options have been given to you and you have to find out that infrasound can be heard by which animal so let's start our answer infrasound has a frequency less than 20 hertz and here rhinosaurs rhinoceros are the animals which communicate which communicate by infrasound of frequency 5 hertz so the correct option for this question will be option c that is rhinosource for more such videos please subscribe leader learning and for any doubts drop a comment thank you"
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