Question

If f is the focal length of a convex lens and an object is placed at a distance x from its focal point.Find the ratio of

Answer 1

Answer:

Distance of object is u=−(f+p)

v

1

+

u

1

=

f

1

gives:

v

1

−

f+p

1

=−

f

1

or,

v

1

=−

f

1

+

f+p

1

or,

v

1

=−

(f+p)×f

p

or, v=−

p

(f+p)×f

(-ve sign indicates image is real)

Magnification =−

u

v

=−

p×(f+p)

(f+p)×f

=−

p

f

(-ve sign indicates inverted)

So, ratio of size of image to that of object is: −

p

f

Explanation:

pls mark as branliest pls