Question

What is a megaphone ? Name the principle on which a megaphone works.

Answer 1

Answer:

A Megaphone, Speaking Trumpet, Bullhorn, or loud hailer is a portable usually hand held cone shaped acoustic horn used to amplify a person's voice or other sounds and direct it in a given direction. A Megaphone works by forcing the sound that comes from a person's voice into one direction making it louder

Answer 2

Megaphone is a simple instrument which is used to amplify the sound.

Megaphone works in a very simple way -

• The megaphone is a funnel.

• When the sound is produced in the smaller end of the funnel,all the sound waves travel through the main body of the megaphone and released by the larger side of the funnel the sound is focused in one direction and gets amplified.