Question

2. Take a plastic or in con or a plastic glassRemove its bottom. Stretch a piece of rubberballoon across one end and fix it with arubber band. Put a few grains of soy ragi orbaira on the stretched rubber. Now ask yourfriend to shout "Hoorrey Hooneyfrom the open end of the glass. Observe thedancing of the grains up and down. Discussthe reason behind this​

Answer 1

Answer:

Due to the vibrations generated in the bottle