Question

for concave, convex mirror and concave,convex lens
where should we put negative and positive signs
for these factors:
f
u
v
h1
h2
m
please explain if possible

Answer 1

hope its help u
good luck for ur study
if object is situated at left side then its sign will be negative if the image form on left side its also have negative sign and in right side the object image will be positive