Noise and redundancy concepts – UGC NET Question

Statements A, B and D are correct, while C is the only wrong statement. A is correct because noise refers broadly to any interference that distorts a message between sender and receiver. B is correct since redundancy, such as repeating key ideas, can help messages survive the effects of noise. D is correct as using multiple examples for the same concept is a practical form of redundancy in teaching. C is wrong because in real educational settings it is rarely possible to eliminate all forms of noise completely.

Option A:
Option A is incorrect because it lists A and C as wrong statements. A is actually a standard definition of noise as interference with the message. Although C is wrong, picking both A and C makes the combination inaccurate.

Option B:
Option B is incorrect because it groups B and C as wrong statements, even though B is a correct statement about the protective role of redundancy. Classifying B as wrong undermines the recognised function of redundancy in communication, so B and C only cannot be accepted.

Option C:
Option C is incorrect because it identifies C and D as wrong. While C is wrong, D accurately points out that multiple examples can serve as redundancy to reinforce a concept. Including D as wrong makes this option logically inconsistent.

Option D:
Option D is correct because it singles out C only as the wrong statement. C unrealistically claims that complete elimination of noise is always possible in educational communication. By keeping A, B and D outside the wrong set and recognising them as correct, this option aligns with communication theory.