Noise vs barrier distinction – UGC NET Question

Noise is any unwanted interference that distorts or masks the message as it travels through the channel. A sudden thunder sound temporarily makes it hard to hear the teacher’s words. This is a classic instance of physical noise,not a permanent structural barrier.

Option A:
Permanent barriers would involve long lasting obstacles,whereas thunder is brief.

Option B:
Noise does not change the message content but hides it,forcing listeners to reconstruct or ask for repetition,making option B correct.

Option C:
Decoding is the receiver’s act of interpreting messages,not the interference itself.

Option D:
Redundancy might be used later to repeat the missed statement,but is not the thunder.