PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoA person needs a lens of power –4.5 D for correction of her vision.
(a) What kind of defect in vision is she suffering from?
(b) What is the focal length of the corrective lens?
(c) What is the nature of the corrective lens?
(a) What kind of defect in vision is she suffering from?
(b) What is the focal length of the corrective lens?
(c) What is the nature of the corrective lens?
a. The person is suffering from .
b. The formula to calculate the Focal length of the corrective lens (\(f\)),
Substitute the known value,
Focal length (\(f\)) \(=\) \(m\)
(Note: Enter your answer with 2 decimal digits and sign, Ex. +0.11 or -0.11)
c. The sign in the focal length shows that it is a .
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