LIGHT part-1

                                Light                                         

• Light is the form of energy that enables us to see.

Properties of light 

• Electromagnetic wave, so Does not require any medium to travel. 

• Light Tends to travel in a straight line.

• Light has Dual nature i.e. Wave as well as particle. 

• Light cast shadow.

• Speed of light is maximum in vacuum. It’s value is 3*10^8m/s .

• When light falls on a surface, following may occur.

1. Refraction 
2. Reflection
3. Absorption 

Reflection

Bouncing back of light when it strikes on a polished  surface like  mirror.

Laws of Reflection:

1.   Angle of incidence is equal to the angle of reflection.

2.  The incident ray, the reflected ray and the normal at the point of incidence, all lie in the same plane.

                                   

Image: 

It is a point where at least two light rays actually made or Appear to meet.

Image Formed by a plane mirror

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