Question

Black level is represented by the formula

Answer 1

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===> Black Hole.
Answer:- it is a technical terminology used to describe the brightness of T.V.
The black level help to determine the black colour.
In a T.V it runs on cathode ray tube,
But in modern day it runs on LED,
LCD .
LED have better black colour contrast, this is why better experience of seeing T.V.

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Finish.