NEAR POINT OF A HYPERMETROPIC EYE IS Im.WHAT IS NATURE AND POWER IF LENS?
ANSWER IS 3 D.MY ANSWER IS 5D
To find the nature and power of a lens, we need to use the formula:
Lens Power (P) = 1/Focal Length (f)
Given that the near point of a hypermetropic eye is at infinity (represented as "Im"), we can determine the focal length of the correcting lens needed for clear vision using the following relationship:
Focal Length (f) = 1/Near Point (Im)
Substituting the value of Im as infinity, we can rewrite the equation as:
f = 1/∞
The reciprocal of infinity is zero, so the focal length of the correcting lens is zero. Therefore, the lens required to correct a hypermetropic eye with a near point at infinity is a "lens of zero power."
In your response, you mentioned that the answer is 5D. However, for a correcting lens in a hypermetropic eye where the near point is at infinity, the power of the lens is zero, and not 5D.