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Match List-I with List-II.
List-I (ECG) List-II (Electrical activity of heart)
(A) P-wave (I) Depolarisation of ventricles
(B) QRS complex (II) End of systole
(C) T wave (III) Depolarisation of atria
(D) End of T wave (IV) Repolarisation of ventricles
Choose the correct answer from the options given below.
(A) (B) (C) (D)
(1) IV I III II
(2) I IV III II
(3) IV III I II
(4) III I IV II

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answer is D.

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Detailed Solution

A-III, B-I, C-IV, D-II

A. ‘P’ wave represents the depolarization of the atria.

B. QRS complex represents the depolarisation of the ventricles.

C. ‘T’ wave represents the repolarisation of the ventricles.

D. The end of ‘T’ wave marks the end of the ventricular systole.

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