Math, asked by mrlooseronline1221, 5 hours ago

What will be the net focal length of the lens combination , if two lenses of focal length +20 cm and -10 cm are combined with each other.

Answers

Answered by dibya2244

1

Answer:

So, the focal length and power of the combination is (-59.8 cm) and (-1.67 D) respectively.

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