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Physics

Multiple Choice Question with Only One Choice Correct
When a solid metallic sphere is heated, the largest percentage increase occurs in its

(a)	diameter	(b)	surface area
(c)	volume	(d)	density

Chemistry

True or False
In 3N HCl solution, iodate can oxidize I₂ according to the reaction

IO₃^- + 2I₂ + 10Cl^- + 6H⁺

5ICl₂^- + 3H₂O

Mathematics

Passage Based Question
Passage I
Two n x n square matrices A and B are said to be similar if there exists a non-singular matrix P such that

P ^-1 A P = B

If A and B are similar matrices such that det (A) = 1, then

(a)	det (B) = 1	(b)	det (A) + det (B) = 0
(c)	det (B) = -1	(d)	none of these

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