Question

(ii)
Savita from std X uses spectacles. Her
spectacle number is - 1.5 D. Answer the
Following questions :
(a) Name the defect of eye from which she is
Suffering.
(b) What type of lens is she using ?
(c) Find the focal length of the lens.​

Answer 1

Answer:

a) Myopia

b) Concave Lens

c) f = 0.66

1.5 D = 1/f

After solving we get 0.66 as the focal length.

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