A 75 mm diameter circular metal disc with 12.5 mm central aperture.
A screw controlled spring loaded precision slit is mounted on one side of the disc.
Max opening 4 mm wide and 10-12 mm long.
To explore light reflection and refraction properties of concave and convex mirrors, laws of reflection, image formation, the effects of surface curvature on reflection, spherical aberration etc.
Each mirror is securely held on a plastic base, diameter of the mirror is 95mm approx.
Pocket type magnifier mounted in single body with a metal cover which doubles as a handle fitted with a single lens of diameter 18 mm with a magnification of x 10.
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