Chapter 12- Sound Introduction You have learnt that sound is a form of energy. It is produced by vibrations. Sound waves are...

Chapter – 13 Sound Sound: Vibrations that travel through the airor another medium and can be heard when they reach a person's or animal's...

NCERT SOLU TIONS | CBSE SCIENCE | GRADE 8 | SOUND Go To File

NCERT SOLU TIONS | CBSE SCIENCE | GRADE 9 | SOUND Go To File