SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A CONVERGENT LENS OF POWER 8D IS COMBINED WITH A DIVERGENT LENS OF POWER-10D . CALCULATE THE FOCAL LENGTH OF THE COMBINATION .
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-0.5
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-1.5
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-2
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2
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Explanation:
Detailed explanation-1: -power of combination = power of concave lens + power of convex lens =-10D + 6D =-4D.
Detailed explanation-2: -Therefore, the resultant power of the combination will be +1.5 D.
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