Question

Show that
$m=\frac{f}{f+u}$
with respect to spherical lenses
please give relevant answers with correct explanation so that I can mark you as brainliest...

Answer 1

magnification in lenses=v/u - (1)

m=v/u

(1/f)=(1/v)-(1/u)

(1/v)=(1/f)+(1/u)

taking lcm (in rhs),

(1/v)=(u+f)/uf

taking reciprocal,

v=uf/(f+u)

substituting value of v in (1),

m=f/(f+u)