How do you find the maximum and minimum focal lengths of eye lens ?
Answers
Answer:
The minimum focal length of eye lens is 2.27 cm.
The minimum focal length of eye lens is 2.27 cm.The distance between lens and retina is 2.5cm.
The minimum focal length of eye lens is 2.27 cm.The distance between lens and retina is 2.5cm.Image is formed at retina.
The minimum focal length of eye lens is 2.27 cm.The distance between lens and retina is 2.5cm.Image is formed at retina.Hence, image distance for eye lens(v) = 2.5cm.
The minimum focal length of eye lens is 2.27 cm.The distance between lens and retina is 2.5cm.Image is formed at retina.Hence, image distance for eye lens(v) = 2.5cm.Maximum focal length:
The minimum focal length of eye lens is 2.27 cm.The distance between lens and retina is 2.5cm.Image is formed at retina.Hence, image distance for eye lens(v) = 2.5cm.Maximum focal length:For maximum focal length, object is at infinity.
The minimum focal length of eye lens is 2.27 cm.The distance between lens and retina is 2.5cm.Image is formed at retina.Hence, image distance for eye lens(v) = 2.5cm.Maximum focal length:For maximum focal length, object is at infinity.Hence, in this case u = - ∞, v = 2.5 cm, = ?
The minimum focal length of eye lens is 2.27 cm.The distance between lens and retina is 2.5cm.Image is formed at retina.Hence, image distance for eye lens(v) = 2.5cm.Maximum focal length:For maximum focal length, object is at infinity.Hence, in this case u = - ∞, v = 2.5 cm, = ?Substituting above values in (1).