Physics, asked by charantej9262, 2 months ago

What is the effective focal length of the convex lenses of focal length 10 cm and 25 cm respectively
are joined together?

Answers

Answered by bigbro24

0

Answer:

50

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Answered by Anonymous

0

Answer: The effective focal length is 7.14 cm.

Explanation:

Focal length of first convex lens, f1 = +10 cm

Focal length of second convex lens, f2= +25 cm

Let the focal length of combination is F, so

Substitute the given values, we get

Thus, the effective focal length is 7.14 cm

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