Question

व्हाट इज द मिनिमम फोकल लेंथ ऑफ़ आई लेंस ओपन नॉरमल पर्सन​

Answer 1

Answer:

$\huge \ \red{\frac{25}{11}cm}$

Answer 2

Answer:

Minimum focal length is achieved when nearest object is seen by the eye lens. Using lens equation,

v

1

−

u

1

=

f

1

f

1

=

2.5

1

−

−25

1

=

25

11

Hence minimum focal length of normal person is f=

11

25

cm