Question

Match List I with List II:

List I		List II
A	P wave	I	Heart muscles are electrically silent.
B	QRS complex	II	Depolarisation of ventricles.
C	T wave	III	Depolarisation of atria.
D	T-P gap	IV	Repolarisation of ventricles.

Choose the correct answer from the options given below:

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

Answer 1

The Correct Option is B

Matching ECG Components with Their Functions:

• A. P wave – Corresponds to the depolarisation of the atria. 
  Matches with: III. Depolarisation of the atria.
• B. QRS complex – Corresponds to the depolarisation of the ventricles. 
  Matches with: II. Depolarisation of the ventricles.
• C. T wave – Corresponds to the repolarisation of the ventricles. 
  Matches with: IV. Repolarisation of the ventricles.
• D. T-P gap – Represents a period when heart muscles are electrically silent. 
  Matches with: I. Electrically silent period.

Thus, the correct answer is (2) A-III, B-II, C-IV, D-I.