In which of the following close packing, (with of hexagonal two-dimensional layers) the packing efficiency is 74%?

निम्नलिखित में से किस निबिड संकुलन (षट्कोणीय द्वि-विमीय परतों वाले) में संकुलन क्षमता 74% है?

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Similar questions

Which of the following statement is not true about the hexagonal close packing ?

(a) The coordination number is 12

(b) It has 74% packing efficiency

(d) In this arrangement spheres of the fourth layer are exactly aligned with those of the first layer

	Column I		Column II
(i)	Square close packing in two dimension	(p)	Triangular voids
(ii)	Hexagonal close packing in two dimensions	(q)	Pattern of spheres is repeated in every fourth layer
(iii)	Hexagonal close packing in three dimension	(r)	Coordination number=4
(iv)	Cubic close packing in three dimension	(s)	Pattern of spheres is repeated in alternate layers

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