Cellphone

This electronic device that was called cellphone is a product of science. Most people uses this technology especially to those in civilized places. Don't you know ? Cellphone is related to physics.. Most likely in sub-branches like optics that deals with the phenomenon associated with light and Acoustics that deals with the phenomenon of sound. This Physics sub-branches exist with this object because it produces light and sound.

Radio

This device invented by Gugliegmo Marconi for transmission of signal through free space by electromagnetic waves with frequencies in the use of humans it is there way to have fun and be entertain. The radio releases sound that can be identified from the sub-branches of physics called Acoustics studies of  sound.

Light Bulb

The Light Bulb was invented by Thomas Edison for the use of some machines in the past generation but now it was usually use in common houses that is needed to give light. You never know that simple things has a relation in science specifically in Physics sub-branches like optics deals with the phenomena associated with light. Obviously that light bulb justify it belongs in this branch.