Describe an experiment to show that sound travels through liquids.

(a) What is sound? What type of waves are sound waves in air? (b) Describe an experiment to show that sound cannot pass through vacuum.

Sound can travel through

Sound can travel through

Describe an experiment to show that sound waves can be reflected. What are the laws of reflection of sound waves.

Explain with simple experiment to show that sound propagates through solid substance.

Describe an experiment to show that sound cannot propagate in vacuum.

Write the following steps in sequence to prove that sound travels through liquids. (a) Place the ear against the side of the container and repeat the activity of hitting one coin with the other inside the water. (b) Take a matallic container and fill it with water. (c) Place two coins inside the water. Hit one of the other and observe the sound produced. (d) Now, a clear and louder sound is heard proving that sound also travels through liquids.