Hiii guys!!!
Tell me the answer plzz....!
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3
Answer:
hi sis !!
its so easy I'LL tell you
as to the figure
1. 11 ,7 , 8 = 13
2. 11 , 10 , 3 = 12
3. 14 , 6 , 16 = 18
4. 5 , 7 ,4 = ?
as to the first ->
11 + 7 + 8 / 2
26 / 2 = 13
second ->
11 + 10 + 3 / 2
24 / 2 = 12
third ->
14 + 6 + 16 / 2
36 / 2 = 18
therefore forth ->
5 + 7 + 4 / 2
16 / 2 = 8
Answered by
1
Answer:
The focal length of an optical system is a measure of how strongly the system converges or diverges light; it is the inverse of the system's optical power. A positive focal length indicates that a system converges light, while a negative focal length indicates that the system diverges light.
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