Write about nature of light?
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Light is a transverse, electromagnetic wave that can be seen by humans. The wave nature of light was first illustrated through experiments on diffraction and interference. Like all electromagnetic waves, light can travel through a vacuum. The transverse nature of light can be demonstrated through polarization.
The speed of light in a vacuum is a universal constant in all reference frames.
The speed of light in a vacuum is fixed at 299,792,458 m/s by the current definition of the meter.
The speed of light in a medium is always slower the speed of light in a vacuum.
The speed of light depends upon the medium through which it travels.The speed of anything with mass is always less than the speed of light in a vacuum.
OTHER CHARACTERISTICS:
The amplitude of a light wave is related to its intensity.
Intensity is the absolute measure of a light wave's power density.
Brightness is the relative intensity as perceived by the average human eye.
The frequency of a light wave is related to its color.
Color is such a complex topic that it has its own section in this book.
Monochromatic light is described by only one frequency.
Laser light is effectively monochromatic.
There are six simple, named colors in English (and many other languages) each associated with a band of monochromatic light. In order of increasing frequency they are red, orange, yellow, green, blue, and violet.
Light is sometimes also known as visible light to contrast it from "ultraviolet light" and "infrared light"
Other forms of electromagnetic radiation that are not visible to humans are sometimes also known informally as "light"
Polychromatic light is described by many different frequencies.
Nearly every light source is polychromatic.
White light is polychromatic.
A graph of relative intensity vs. frequency is called a spectrum (plural: spectra).
Although frequently associated with light, the term can be applied to any wave phenomena.
A continuous spectrum is one in which every frequency is present within some range.
Blackbody radiators emit a continuous spectrum.
A discrete spectrum is one in which only a well defined set of isolated frequencies are present.
(A discrete spectrum is a finite collection of monochromatic light waves.)
The excited electrons in a gas emit a discrete spectrum.
The wavelength of a light wave is inversely proportional to its frequency.
Light is often described by it's wavelength in a vacuum.
Light ranges in wavelength from 400 nm on the violet end to 700 nm on the red end of the visible spectrum.
Phase differences between light waves can produce visible interference effects.
(There are several sections in this book on interference phenomena and light.)
The speed of light in a vacuum is a universal constant in all reference frames.
The speed of light in a vacuum is fixed at 299,792,458 m/s by the current definition of the meter.
The speed of light in a medium is always slower the speed of light in a vacuum.
The speed of light depends upon the medium through which it travels.The speed of anything with mass is always less than the speed of light in a vacuum.
OTHER CHARACTERISTICS:
The amplitude of a light wave is related to its intensity.
Intensity is the absolute measure of a light wave's power density.
Brightness is the relative intensity as perceived by the average human eye.
The frequency of a light wave is related to its color.
Color is such a complex topic that it has its own section in this book.
Monochromatic light is described by only one frequency.
Laser light is effectively monochromatic.
There are six simple, named colors in English (and many other languages) each associated with a band of monochromatic light. In order of increasing frequency they are red, orange, yellow, green, blue, and violet.
Light is sometimes also known as visible light to contrast it from "ultraviolet light" and "infrared light"
Other forms of electromagnetic radiation that are not visible to humans are sometimes also known informally as "light"
Polychromatic light is described by many different frequencies.
Nearly every light source is polychromatic.
White light is polychromatic.
A graph of relative intensity vs. frequency is called a spectrum (plural: spectra).
Although frequently associated with light, the term can be applied to any wave phenomena.
A continuous spectrum is one in which every frequency is present within some range.
Blackbody radiators emit a continuous spectrum.
A discrete spectrum is one in which only a well defined set of isolated frequencies are present.
(A discrete spectrum is a finite collection of monochromatic light waves.)
The excited electrons in a gas emit a discrete spectrum.
The wavelength of a light wave is inversely proportional to its frequency.
Light is often described by it's wavelength in a vacuum.
Light ranges in wavelength from 400 nm on the violet end to 700 nm on the red end of the visible spectrum.
Phase differences between light waves can produce visible interference effects.
(There are several sections in this book on interference phenomena and light.)
Answered by
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HEY Answer iS:
Light is a kind of energy that travel's in Waves. light travel's very fast and In straight lines.it can travel in vaccum and many other Media. in a vaccum The speed is constant, C =3*10^8m/s.
I HOPE THIS ANSWER HELPS YOU MORE.
Light is a kind of energy that travel's in Waves. light travel's very fast and In straight lines.it can travel in vaccum and many other Media. in a vaccum The speed is constant, C =3*10^8m/s.
I HOPE THIS ANSWER HELPS YOU MORE.
sudipa4:
What about wave nature and particle nature?
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