Question

Cracker in ignition produces sound .why?

Answer 1

Firecrackers are generally made of cardboard or plastic, with flash powder or black powder as the propellant. This is not always the case, however. Anything from match heads to lighter fluid have been used successfully in making firecrackers. The key to loud firecrackers, however, although in part lying in the propellant substance, is pressure. The entire firecracker must be very tightly packed in order for it to work best. Flash powder, however, does not need to be packed tightly, and should not be.

Answer 2

Crackers on ignition produce rowdy sound. This is happens due to the chemical reaction that takes place when the cracker is ignited. It is due to the reason that when the gunpowder is suppressed in any way then the gas present in it is released with a large popping sound.