Light

Light is a form of energy

Light makes things visible

Light is an electromagnetic radiation exhibited by the sun

Light is made up of energy containing particles called 'photons'

Light has a duel nature

Light has some properties of mass

speed of light is 3*10^8 m/s

There are 2 types of objects

click to edit

Luminous

Non Luminous

Don't emit light

Emit light

Different objects react differently towards lights

Opaque objects

Transparent Objects

Translucent objects

Objects That block light by either reflecting or absorbing light

Which allow light to pass partially

Which allow light to pass through

Light has some properties of waves

When light rays reflect from the surface of an object and into our eyes, the object is visible

Reflection

Incident ray

reflected ray

the ray of light falling on an object

normal

the reflected ray of light from a surface

the line perpendicular to the point where the incident ray falls

the angle formed between the normal and the incident ray

the angle formed between the normal and the reflected ray

Angle of reflection

Angle of incidence

Types of reflection

regular reflection

irregular reflection

it is uniformed

Angle of incidence = Angle of reflection

it is not uniformed

Angle of incidence is not equal to the Angle of reflection

mostly happens when light is shone on plane, smooth surfaces

mostly happens when light is shone on surfaces which are rough

light is scattered

dispersion

white light is made up of seven different colours

when white light splits into seven different colored