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A converging lens of focal length 30 cm is placed in contact with another converging lens of unknown focal length then possible values for focal length of combination is?
Most Upvoted Answer
A converging lens of focal length 30 cm is placed in contact with anot...
Combination of Lenses:
To find the possible values for the focal length of the combination of lenses, we need to consider the lens formula:
1/f = 1/f1 + 1/f2
where f is the focal length of the combination, f1 is the focal length of the first lens, and f2 is the focal length of the second lens.
Given:
- Focal length of the first lens (f1) = 30 cm
- Focal length of the second lens (f2) = unknown
Possible values for focal length of combination:
1. When the second lens is converging:
- If the second lens is also a converging lens, then its focal length (f2) will be positive.
- In this case, the focal length of the combination (f) will be less than 30 cm.
2. When the second lens is diverging:
- If the second lens is a diverging lens, then its focal length (f2) will be negative.
- In this case, the focal length of the combination (f) can be greater than 30 cm.
Therefore, the possible values for the focal length of the combination will depend on the nature of the second lens (converging or diverging) and can be calculated using the lens formula mentioned above.
Community Answer
A converging lens of focal length 30 cm is placed in contact with anot...
30 cm since both focal lengths should be equal to give a proper image
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A converging lens of focal length 30 cm is placed in contact with another converging lens of unknown focal length then possible values for focal length of combination is?
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A converging lens of focal length 30 cm is placed in contact with another converging lens of unknown focal length then possible values for focal length of combination is? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A converging lens of focal length 30 cm is placed in contact with another converging lens of unknown focal length then possible values for focal length of combination is? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A converging lens of focal length 30 cm is placed in contact with another converging lens of unknown focal length then possible values for focal length of combination is?.
A converging lens of focal length 30 cm is placed in contact with another converging lens of unknown focal length then possible values for focal length of combination is? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A converging lens of focal length 30 cm is placed in contact with another converging lens of unknown focal length then possible values for focal length of combination is? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A converging lens of focal length 30 cm is placed in contact with another converging lens of unknown focal length then possible values for focal length of combination is?.
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