Concept explainers
(a)
Type of lens.
Answer to Problem 44P
Solution:
Converging lens, positive power.
Explanation of Solution
Given:
Sunlight is observed to focus at a point behind the lens. I.e. Focal length,
Formula used:
Power in dioptre
Where, is focal length in .
Calculation:
Type of lens is converging lens with positive power.
(b)
Power of lens in dioptres.
Answer to Problem 44P
Solution:
Power in dioptres
Explanation of Solution
Given:
Sunlight is observed to focus at a point behind the lens. I.e. Focal length,
Formula used:
Power in dioptre
Where, is focal length in .
Calculation:
Power in dioptre is given by the formula . Where is focal length of the lens in . Here
Chapter 23 Solutions
Physics: Principles with Applications
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