Final answer:
The subject matter concerns the physics of lighting and reflective components in vehicles, such as parabolic mirrors in headlights and corner reflectors. It also touches on the thermodynamic conversion of kinetic energy into heat during braking. The concepts are based on principles of optics and energy conservation.
Step-by-step explanation:
The question relates to the principles of optics and light reflection employed in vehicle headlights, taillights, and other lighting and reflective systems. Parabolic mirrors are utilized in headlights to focus light into a directional beam, aiding in road illumination while driving.
Similarly, when considering the setup required to see the back of one's head, a minimum of two mirrors arranged at an angle to each other are necessary to reflect the image from one to another, allowing a person to see the image that wouldn't be directly visible otherwise.
A corner reflector is another optical device that uses two mutually perpendicular reflecting surfaces to reflect light back parallel to its original direction, a feature that is crucial in vehicle reflectors as well as bicycle and pedestrian safety devices.
The purpose of these devices is to return light in the direction of its source, making them highly visible when illuminated by a light source, such as a car's headlights.
Lastly, the concept of the mechanical equivalent of heat is observed in instances where frictional force, such as that of brake pads against a wheel, converts kinetic energy into heat energy, as evidenced by smoking brakes on a vehicle. This physical phenomenon is part of the study of thermodynamics and energy conversion.
The complete question is: Horn and one mirror, Headlight, taillight and brakelight and Front and rear brakes, horn is: