Question

important things in sound chapter 10 icse 2019?​

Answer 1

Everything is important.

Hope it helps.

Answer 2

✷ECHO!

✷LOUDNESS

✷PITCH

✷FACTORS AFFECTING IT

✷ECHO NUMERICALS

✷DIFF BETW. SOUND WAVES AND LIGHT WAVES

✷WHAT IS THE PRINCIPLE ON WHICH THE SONAR BASED?

✷WHAT ARE MECHANICAL AND NON MECHANICAL WAVES?

✷RESONANCE

✷DAMPED VIBRATION

✷NATURAL VIBRATION

✷ELECTROMAGNETIC WAVES