two lenses having power +2D and -4D respectively are put together. calculate the power and nature of combination of two lenses
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Answered by
8
when they put together power = -4D +2D
= -2D
P=1/F
-2=1/F
F=1/-2
F= 0.5M
THE NATURE OF TWO COMBINE LENS IS CONCAVE BECAUSE POWER IS IN MINIUS.
I HOPE THIS WILL HELP YOU...
PLS MARK AS BRAINLIEST.
= -2D
P=1/F
-2=1/F
F=1/-2
F= 0.5M
THE NATURE OF TWO COMBINE LENS IS CONCAVE BECAUSE POWER IS IN MINIUS.
I HOPE THIS WILL HELP YOU...
PLS MARK AS BRAINLIEST.
Answered by
3
Answer:
-2D
Explanation: P =POWER
P1 = +2D
P2 = -4D
P= P1 +P2
P = +2D +(-4D)
P = 2D -4D
P = -2D
Nature of combination of two lenses is concave lens as power is negative.
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