UGC NET Questions (Paper – 1)

Noise is any unwanted interference that distorts or obscures the message as it travels through the channel. Loud construction sounds outside the classroom reduce students' ability to hear the teacher's words clearly. This is a typical case of physical noise in the environment. Therefore,"noise" is the appropriate term.

Option A:
Redundancy refers to deliberate repetition of information to improve clarity,not to disruptive sound. The construction noise does not reinforce the message; it obstructs it.

Option B:
Feedback is the receiver's response that goes back to the sender,rather than an interfering sound.

Option C:
Encoding is the sender's process of translating ideas into symbols,which is separate from environmental disturbances.

Option D:
Because the interference comes from external sounds disrupting hearing,it matches the definition of noise in communication theory.

Noise is any unwanted interference that distorts or obscures the message while it travels through the channel. Loud traffic entering through the window makes it difficult for students to hear the teacher clearly. This external sound therefore functions as noise in the communication process.

Option A:
Feedback is the receiver's response and is purposeful,unlike random traffic sounds.

Option B:
Channel is the medium such as air or electronic signals and is not itself the interference.

Option C:
Because the example highlights environmental sound reducing clarity,noise is the correct term.

Option D:
Redundancy is used to reinforce messages,whereas noise undermines them.