IIT JAMChemistrySolid StateNumerical+2 / −0
The unit cell of a two-dimensional square lattice with lattice parameter a is indicated by the dashed lines as shown below:
The percentage (%) area occupied by the grey circles (of radius r) inside the unit cell is . (rounded off to the nearest integer)
The percentage (%) area occupied by the grey circles (of radius r) inside the unit cell is . (rounded off to the nearest integer)Numerical answer
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Correct answer: 77, 79
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