You can understand A traditional incandescent light bulb and technology works by passing an electric current through a thin wire coil called a filament. The electrical resistance in the wire heats it to a white-hot glow, which produces visible light.
Light has several important characteristics (or features) that describe how it behaves:
Light is a form of energy
It carries energy from one place to another.
The Sun is the main natural source of light for Earth.
Light travels in straight lines
This is called rectilinear propagation.
Shadows are formed because light travels in straight paths.
Light travels very fast
In a vacuum, its speed is about 300,000 km/s (3 × 10⁸ m/s).
Light can be reflected
When light strikes a surface, it can bounce back.
Mirrors work because of reflection.
Light can be refracted
It bends when it passes from one medium to another (such as air to water).
This is why a straw in water appears bent.
Light can be dispersed
White light can split into different colors.
A prism creates a spectrum of colors (rainbow effect).
Light can be absorbed
Materials can absorb light energy and convert it into heat or other forms of energy.
Light shows wave-particle duality
It behaves both as a wave and as tiny particles called photons.
Light has different wavelengths and frequencies
Different wavelengths produce different colors.
Visible light is only a small part of the electromagnetic spectrum.
Light does not require a medium to travel
Unlike sound, light can travel through the vacuum of space.
These properties make light essential for vision, communication, photography, astronomy, and many modern technologies.
How does light bulb works?
Who was thomas elva edison?
He was the inventor of the light and the bulb.