AP EAMCET Engineering 2018 Apr 23 Shift 2 Paper

Given, for object, u=−2‌cm and f=1.5 cm
The lens formula is,

1

v

−

1

u

=

1

f

Substitute values.

1

v

−

1

(−2)

=

1

1.5

v=6‌cm
Given, for eyepiece,
v=−25‌cm and f=6.25‌cm
By the lens formula,

1

u

=

1

−25

−

1

6.25

u=−5‌cm
The distances is shown below,Thus the distance between two lenses is 11 cm.