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RAY OPTICS
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easy notes for ray optics class 12th ncert
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RAY OPTICSLike all the different types of light, the spectrum of
visible light is absorbed and emitted in the form of tiny
packets of energy called photons. These photons have
both the properties of a wave as well as a particle.
Hence this type of property is called wave-particle
duality and the study of light in the area of physics is
known as Optics.
Optics is the branch of physics which is concerned with
light and it’s behavioural pattern and properties.
Optics : Optics is a branch of physics that deals with the
determination of behaviour and the properties of light,
along with its interactions with the matter and also
with the instruments which are used to detect it.
Optics, in a simple manner, is used to describe the
behaviour of visible light, infrared light, and ultraviolet.
Imaging is done with the help of a system called an
image forming an optical system.
, Ray optics is also called geometrical optics. It is a
branch of science that describes light propagation in
terms of “rays”.
Light is a form of energy that is in the form of an
electromagnetic wave and is almost everywhere
around us. The visible light has wavelengths measuring
between 400–700 nanometres. The Sun is the primary
source of light by which plants utilize this to produce
their energy.
In physics, the term light also refers to electromagnetic
radiation of different kinds of wavelengths, whether it
is visible to the naked eye or not. Hence, by this, the
gamma rays, microwaves, X-rays, and radio waves are
also types of light. Learn more by visiting the links
below.
Gamma rays
Microwaves
X-rays
Radio waves
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