Question 404: Ray Optics

Question

Diameter of human eye lens is 2 mm. What will be the minimum distance between two points to resolve them, which are situated at a distance of 50 meter from eye. The wavelength of light is 5000 $$\mathop A\limits^ \circ  $$

Accepted Answer

For the aparture, limit of resolution :
$${y \over D} \ge {\lambda  \over d}$$
$$ \Rightarrow $$ y $$ \ge $$ $${{\lambda D} \over d}$$
$$ \Rightarrow $$ y $$ \ge {{5 	imes {{10}^{ - 7}} 	imes 50} \over {2 	imes {{10}^{ - 3}}}}$$ $$ \ge $$ 1.25 cm

Answer

2.32 m

Answer

4.28 mm

Answer

1.25 cm

Answer

12.48 cm

Ray Optics

Diameter of human eye lens is 2 mm. What will be the minimum distance between two points to resolve them, which are situated at a distance of 50 meter from eye. The wavelength of light is 5000 $\mathop A\limits^ \circ

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