Deviation without Dispersion :- Deviation produced by flint glass prism for a colour is equal and opposite which produced by crown glass prism. As a…
Optical microscope:- The optical microscope, often referred as the light microscope. It is a type of microscope that uses visible light and a system of…
Human Eye :- The human eye is the most complicated Sense organ in the body with several parts fixed together form a spherical structure. Our…
Dispersion of light :- Dispersion of light is the phenomenon of splitting of a beam of white light into its 7 constituent colours when passed…
Dispersion by a prism :- When white light ( Sun light ) is incident on a glass prism, the emergent light is seen to be…
Angle of deviation ( δ ) :- The passes of light through a triangular prism ABC, The angles of incidence and refraction at the first…
Equivalent focal length of two lenses :- Let us consider two lenses L₁ ( focal length f₁ ) and L₂ ( focal length f₂ )…
Let us consider two lenses A anb B of focal length f₁ and f₂ placed in contact with each other. Let the object be placed…
Refraction of light at a convex surface :- 1. For real image :- The figure shows the geometry of formation of image I of an…
Twinkling of stars :- it is is a phenomenon of atmospheric refraction. Stars do not really twinkle they just appear to twinkle when seen from…