English, asked by sunny2733, 1 year ago

if two lenses of power 2d and 3d are kept in contact with each other then focal length of the combination

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Answered by bharat2002

7

Answer:

please refer to the attachment and Mark it as brainiest if it helps you

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sunny2733: thxxx

Answered by s1500dchinmahi7152

2

Answer:

total P= 2D+ 3D= 5D

f = 100/5

= 20cm

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