Statement I : A myopic person is advised to use concave lens. Statement II : The eye lens of a myopic person focuses the parallel rays coming from distant ogject in from distant objects in front of the retina.
In the myopia eye defect, the rays of light
Explain why does a concave lens diverges the rays of light falling on it.
a) What type of lens is shown in the diagram on the right? What will happen to the parallel rays of light? Show by completing the ray diagram. b) Your eye contains a convex lens. Why is it unwise to look at the sun?
A person having a myopic eye uses a concave lens of focal length 50 cm. What is the power of the lens?
X-ray falling on a meterial
Far points of myopic eye is 250 cm, then the focal length of the lens to be used will be
The far point of a myopic eye is 10 cm from the eye. The focal length of a lens for reading at normal distance ( 25cm) is
