Light

Nature of light reflection of light, laws of reflection

Reflection from plane and curved surface, image formation by plane convex and concave mirror

Relation between focal length and radius of curvature

  Causes of origin of energy in the Sun

Electric discharge in gases

Electricity and its effects

Electric intensity, potential, potential difference

Electric current Ohm’s law

Resistance specific resistance, influencing factors

Combination of resistance and related numerical examples

Thermal effect of current its use, calculation of power and electrical energy spent (numerical), precautions observed in electric experiments.

Photo electric effect

Solar Cell, Structure, PN Junction Diode

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