Optics 3 Question 29
29. Two thin lenses, when in contact, produce a combination of power
(1997, 2M)
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Answer:
Correct Answer: 29.
Solution:
- When the lenses are in contact, the power of the system is
When lenses are separated by a distance
The power is
or
Solving Eqs. (i) and (ii), we can find that
