The loss of strength of a signal while propagating through a medium is called:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Attenuation
As a signal travels through a medium (a cable, or the space between the antennas) it loses some of its strength. This loss is called attenuation.
Note: The same question was also asked in CUET (UG) 2023 on 26-05-2023 (Slot 3), and a similar question in CUET (UG) 2023 on 06-06-2023 (Slot 1).
Note: This question is from the pre-rationalised NCERT book (2022-23). The topic was removed from the latest NCERT book (2026-27), and it also appears to be out of the CUET 2026 syllabus.
NCERT (Pre-rationalised edition, 2022-23):
Basic Terminology Used in Electronic Communication Systems – “… Attenuation: The loss of strength of a signal while propagating through a medium is known as attenuation.”