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Sir Isaac Newton
Christian Huygens
Light is made up of particles that travels through space on a straight line
James Clark Maxwell
Light is made up of waves similar to that of water waves
Discovered the Electromagnetic Theory of Light. He combined the concepts of light, electricity and magnetism to come up with his theory forming electromagnetic waves.
Max Planck
Explained that light can be a particle and can also be a wave which is now known as
the Dual-Nature of Light.
Electromagnetic Spectrum
>The shorter the wavelength, the higher the frequency and energy
>Dispersion is the separation of white light by a prism into bands of colors
LIGHT
It is an electromagnetic radiation that can produce a visual sensation
SOURCES OF LIGHT
1. Natural source (Sun and stars)
2. Artificial source (bulbs, lamps, candles, etc.)
>Brightness of light depends on the source and the distance from the source.
>Candela is the basic unit of luminous intensity