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Multiple Choice Question with Only One Choice Correct
A uniform but time varying magnetic field B(t) exists in a circular region of radius a and is directed into the plane of the paper as shown in Fig.

The magnitude of the induced electric field at point P at a distance r from the centre of the circular region

(a)	is zero	(b)	decreases as
(c)	increases as r	(d)	decreases as

Chemistry

Multiple-Choice Question
Which of the following statements regarding phosphorus tetroxide is not correct?
(a) Phosphorus tetroxide is a mixed anhydride
(b) It is obtained by heating trioxide in a sealed tube at 440^oC
(c) It produces phosphoric acid when treated with water
(d) Two of the phosphorus atoms in P₄O₈ are attached to oxygen through coordinate bonds

Mathematics