Natural Phenomena

This chapter discusses winds, storms, and cyclones, with explanations of air pressure, high-speed wind, etc. It also discusses the wind currents which is caused by uneven heating. Thunderstorms, cyclone, etc. are also caused due to huge drop in pressure.

This chapter discusses the phenonmenon of light. Light propagates in a straight line. It produces virtual and real images. This chapter also covers spherical mirrors and its different uses, lenses and its focus, principle axis, etc.