Concept explainers
(a)Converging lens
(b)Diverging lens
Answer to Problem 30Q
Solution:
(a)The converging lens does not have a shorter focal length
(b)The diverging lens does not have a longer focal length
Explanation of Solution
If the converging lens does not have a shorter focal length than the diverging lens, then the converging lens’ image (which will be a virtual object for the diverging lens)will be too far away from the diverging lens and it will just form another virtual image. This situation does not good in determining the focal length of the diverging lens, since we can’t measure the distance from the lens to a virtual image
Chapter 23 Solutions
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