OPTICS

Ø Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it.

Ø Optics usually describes the behaviour of visible, ultraviolet, and infrared light.

SCATTERING OF LIGHT :

Ø When sunlight enters the Earth’s atmosphere, the atoms and molecules of different gases present in the atmosphere refract the light in all possible directions. This is called as ‘Scattering of light’.

Ø In this phenomenon, the beam of light is redirected in all directions when it interacts with a particle of medium.

Ø The interacting particle of the medium is called as ‘scatterer’.

LENSES :

Ø A lens is an optically transparent medium bounded by two spherical refracting surfaces or one plane and one spherical surface.

Differences between a Convex Lens and a Concave Lens :

MIND MAP