Take a bucket or a bathtub Fittit
with clean water. Take a small bell
in one hand. Shake this bell inside
the water to produce sound. Make
sure that the bell does not touch
the body of the bucket or the tub.
Fig. 13.11: Soundtracing through water
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Answer:
National Council of Educational Research and Training (NCERT) Book for Class VIII
Subject: Science
Chapter: Chapter 13 – Sound
Class VIII NCERT Science Text Book Chapter 13 Sound is given below.
How do you come to know that a ‘period’ is over in your school? You come to know easily that someone is at your door when he knocks or you hear the sound of the doorbell. Most of the time you can make out that someone is approaching you by just hearing the foot steps.
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