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An object is placed exactly midway between a concave mirror of radius of curvature 40 cm and a convex mirror of radius of curvature 30 cm. The mirror are facing each other and are 50 cm apart. Find the nature and position of the image formed by successive reflections, first at the concave mirror and then at the convex mirror.

Chemistry

True or False :
A catalyst decreases the enthalpy change of a chemical reaction.

Mathematics

Passage Based Question
Passage I
A square matrix A of size n x n is said to be unimodular if det (A) = 1.
If A and B are unimodular matrices, then adjoint of APB is

(a)	A (adj P) B	(b)	B (adj P) A
(c)	B^-1 (adj P) A^-1	(d)	A^-1 (adj P) B^-1

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