SUDESHNA    PAUL     EDUCATIONAL    COMPANION

 

OPTICS

 

 Reflection in a plane mirror            Refraction of Light from Rarer to Denser media    

 

 Refraction of Light from denser to rarer media Critical Angle and  Total Internal Reflection 

 

 Dispersion of Light & Spectrum           Image Formation on Convex  Lense       

 

 Images at different   Object position     Transverse Wave Light      Back to Physics

 

 

 

 

   

 

Reflection

 

ray hits a mirror

 

 

 

 

 

 

 

Refraction of Light from denser to rarer media 

Critical Angle and  Total Internal Reflection

  If you do not find the animation below download & install Java Runtime to update  your computer

 

 

 

 

   Here light passes from glass to air. Here the angle of refraction is more than that of angle of incidence. As the angle of incidence is increased, the  angle of refraction increases till it reaches 90 deg. , when the angle of incidence is the critical angle. If the angle of incidence is increased further beyond the critical angle, no refraction takes, total light is reflected back into the glass media, known as Total internal Reflection.

 

  Dispersion of Light & Spectrum

If you do not find the animation below download & install Java Runtime to update  your computer

 

 

 

 

 

 White light , composed of seven primary colors of light , having different refraction indexes is allowed to pass through, refraction of each of the color takes place according to its refractive index and hence they bend to different angles with violet the maximum and red the minimum. Thus white light splits into colors spectrum.

 

 

  

 Image Formation on Convex Lense

If you do not find the animation below download & install Java Runtime to update  your computer

  

                                                                       

 

 

 

Transverse Wave Light 

If you do not find the animation below download & install Java Runtime to update  your computer

 

 

 

 

         

 

 

 

n a transverse wave, particles of the medium are displaced in a direction perpendicular to the direction of energy transport The animation below depicts the boundary behavior of a pulse which is moving along 

Go to the top