Question

when a image formed when the object is kept at a distance of the 25 cm by convex lens please let me know it is very important

Answer 1

the image formed is real

MARK IT AS BRILLIAST

Answer 2

Given,
$f = 10cm \\ u = - 25cm$
As we know that,

$\frac{1}{f} = \frac{1}{v } - \frac{1}{u}$

$\frac{1}{10} = \frac{1}{v} - (\frac{1}{ - 25} )$

$\frac{1}{10} - \frac{1}{25} = \frac{1}{v}$

$\frac{5}{50} - \frac{2}{50} = \frac{1}{v}$

$\frac{3}{50} = \frac{1}{v}$

$v = \frac{50}{3}$

$v = 16.67 \: cm$

$v = 16.67 \: cm \: is \: your \: answer.$