(a) calculate the least amount of ammeter, when it has. 20 divisions betweenaeks 0 and 2 on its end scale.
(b) why is its advised to clean the ends of connecting wires before connecting them
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To trace the path of the rays of light through a glass prism. When a ray of light (DE) from air strikes on a face AB of a triangular glass prism ABC, it gets refracted and bends towards the normal to the plane of the face AB.
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