Answer-
Barriers are any obstacles or difficulties that come in the way of communication.
It may be physical ,mechanical ,psychological,cultural or linguistic in nature.
1.PHYSICAL BARRIERS-
A.THE COMPETING STIMULUS -
example loud music,traffic noise etc.
B.ENVIRONMENTAL STTESS-
example a strong glare ,temperature and humidity .
C.SUBJECTIVE STRESS-
Sleeplessness,health ,effects of drugs etc.
D.IGNORANCE OF MEDIUM-
audio ,video,written,etc
2.PSYCHOLOGICAL BARRIERS-
No two individuals possess exactly similar frames of reference ,even if they are identical twins.
3.LINGUISTICS AND CULTURAL BARRIERS-
When the same language is made use in a different culture it takes an another way ,or we can say another meaning.
4.MECHANICAL BARRIERS-
Absence of communicator facilities etc which interferes with the fidelity of physical transmission of messages.