PROJECT:- Concept of Light and Ray Diagram For Concave Mirror.

Q.No.1. Write a notes on concept of Light with the views of prominent scientists in scientific domain. 

Answer:-  The view of world's prominent scientists on light are different. Someone consider light is a particle while someone consider light is a wave. The debate about whether light consists of waves or particles dates back to the 17th century  Early in the 20th century, Albert Einstein , Niels Bohr, and others exploring the world of quantum mechanics said light behaves as both waves and particles. Later experiments clearly showed this "wave-particle duality," but they were never able to show light as both waves and particles at the same time. The authentic definition of light is that it is a type of energy and Its  a form of electromagnetic radiation of a  wave length which can be detected by the human eye. The study of light, known as optics, is an important research area in modern physics. Light is electromagnetic radiation that is shows properties of both waves and particles .

Research Scholar and columnist Engineer Affan Nomani has written in his article on June 28, 2016 , published in India's national English, Hindi and Urdu newspaper and magazine  that " Abu Ali Muhammed Hasan Ibne Haisam ( 965-1039 BC ) , well known as  Al-Hazen in Europe , was the first Scientist who proved Theology of European Wrong and given wonderful theory that the Light rays comes  from object to the Eye not from Eye to the object.  Al-Hazen was the one of the world's most influential physicist ,
responsible for the development of world's first Microscope.


Q.No.2. When an object placed at centre of curvature

 then where and what kind of image will be form ?


Answer:-  When an object placed at centre of curvature  ( C ) then the image will be formed Real, Inverted  and same that of object at centre of curvature ( C )  only.

Q.No.3. Where will be the image be formed when we 
place an object on the principal axis of a concave mirror at a point between focus and centre of curvature  ? 

Answer:- When an object placed at between focus
 ( F )  and centre of curvature ( C )  then the image will be formed Real, Inverted, Enlarged and beyond the centre  of curvature  ( C ).

Q.No.4  When an object placed at beyond centre of

curvature ( C )  then where and what kind of image 

will be form ?

 
Answer:- When an object placed at beyond the centre of curvature ( C )  then the image will be formed Real, Inverted, and diminished at 
between focus ( F )  and centre of curvature ( C ).

© NRSC, Model Prepared by Engineer Affan Nomani, Research Scholar & Writer