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State the uses of Zinc sulphide
Zinc sulphide has a lattice constant of 0.596nm . The sulfide ions are quite big (atomic radius 184 pm) relative to the size of the zinc ions (74 pm). In the diamond structure sulphide ion (shown in grey) occupies the FCC lattice points with the Zinc ions(shown in red) is the other atom of the basis. When compared to diamond saphalerite structure is more soft. Therefore we can see that the strength of the tetrahedral bond verifies the hardness of the material.
to derive expreation for magnitude & direction for the resultant which two are acting at a point
The image of a candle is produced by a convex lens on a screen. The lower half of the lens is painted black to make it completely opaque. Illustrate the ray diagram to show the ima
Pauli exclusion principle (W. Pauli; 1925) No two similar fermions in a system, like electrons in an atom, can have an equal set of quantum numbers.
how is Rainbow is formed in a Environment ?
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list the factors used to classify inductors.
SMALL ALKALINE CELLS: Hermetically sealed Ni-Cad cells are produced in the same size and shape as their primary counterparts. They are small, portable and maintenance free, but
Advantages of fibre optics: Fibre-optic communications systems have a large bandwidth, e.g. 1 GHz. The bandwidth is the maximum rate at which information can be transmitted.
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terrestrial telescope
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