Convex Lens - an overview | Physics Wallah
A lens is a transparent material that concentrates or disperses light rays when it passes through them by refraction. According to the shape and purpose of the lens, they are classified into two types convex lens and concave lens.
https://www.pw.live/physics-articles/convex-lens
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List of Chemistry Articles | Physics Wallah
This list of chemistry articles highlights the basic knowledge and understanding of chemistry in daily life . You can easily understand any subtopic you want by clicking on the link. The list is given so that you can get all the access to the information at one point. So took a glance at the topics before preparing for any examination.
https://www.pw.live/chemistry-articles
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