PHOTO ELECTRIC EFFECT - DEFINITION, LAW AND EINSTEIN'S THEORY
Photo electric effect Consider a negativity charged zinc plate connected to a gold leaf electroscope (Fig. 1). The divergence in the leaves...
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Magnet: Introduction Science of magnetism dates back to 600 B.C., when Thales of Miletus had a knowledge that an ore of iron called, magneti...
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Optical instruments An optical instrument is a device which is constructed by a suitable combination of mirrors, prisms and lenses. The pri... -
Electric current ( i ): We know that electric potential of a body is defined as the degree of electrification and it determines the directi...
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