UGC NET Questions (Paper – 1)

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.

Redundancy means including extra information beyond what is strictly necessary for basic comprehension. When parts of a message are lost or distorted because of noise, repeated or predictable elements allow receivers to reconstruct the intended meaning, increasing reliability.

Option A:
Option A sends each piece of information only once, which reduces redundancy and makes the message more vulnerable to loss and error.

Option B:
Option B is correct because adding repeated or predictable elements provides clues that help receivers infer missing parts when the message is partially damaged by noise.

Option C:
Option C claims redundancy eliminates the need for feedback, but feedback is still necessary to confirm understanding and adjust communication; redundancy and feedback play different roles.

Option D:
Option D focuses on making the message as short as possible, which typically reduces redundancy and therefore lowers, rather than raises, protection against noise.