what is light

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Erta Tema Optics Optics is a branch of physics that studies the behaviour and properties of light, as well as mirrors, lenses, and how we humans/ our eyes perceive light.

von Erta Tema

what is light

non lominous objects

rocks

metals

moon

trees

non luminous objects do not make there own light

electromagnetic spectrum

microwaves

infared

visable light

ultra violet

x rays

gamma

absobtion of light

darker colours

colourd objects

water

metal

lumonois objects

sun

light bulb

candle

stars

fireflies

luminous objects are objects that make light

reflection

diffuse reflection

diffuse relection is where light hits off a very rough surface making different angles of reflection.

real image

a real image is where light rays hit off a mirror then all comes together

specular reflection

where a beam of light hits a flat surface

virtual images

virtual images are rays of light that spead after hitting off a mirror or refective object

angle of incidence

a point of incidence is the exact angle of where a ray of light hit of a mirror

mirrors

a mirror is a reflective object that reflects light

lights transmission

sun rays going through water or class

this is a good example because the sun is cery bright and has alot of light rays and the water and glass is very translucent/transparent

light transmission is where passes through an object

refraction

normal

a normal is the exact point of incidence where the light hits

medium

a medium is an objects that transfers light from one object to another

change of direction fo a ray of light