{:("Column A","Column B"),(A."Pinhole camrea",(" ")a."Extended source"),(B."Kaleidoscope",(" ")b."Multiple reflecttion"),(C."Distance from pole to the center of a mirror",(" ")c."Rectilinear"),(D."Distance from the pole of the mirror to the principal focus.",(" ")d."Focal length"),(E."Tube light",(" ")e."Radius of curvature"):}

{:("Column A","Column B"),(A."Pinhole camrea",(" ")a."Extended source"

1.	{:("Column A","Column B"),(A."Pinhole camrea",(" ")a."Extended source"),(B."Kaleidoscope",(" ")b."Multiple reflecttion"),(C."Distance from pole to the center of a mirror",(" ")c."Rectilinear"),(D."Distance from the pole of the mirror to the principal focus.",(" ")d."Focal length"),(E."Tube light",(" ")e."Radius of curvature"):}
Answer» Solution :A-c Pin hole camera works on the PRINCIPLE of RECTILINEAR PROPAGATION. B-b KALEIDOSCOPE works on the principle of multiple reflection. C-e Distance between the pole of the mirror and center of curvature is called RADIUS of curvature. D-d Distance between the pole of the mirror and prinicpal focus is a called focal length. E-a A glowing tube light is an example of extended source of light.