Question

an object is placed at 30cm of convex mirror image is formed at 10cm from mirror if v is doubled where with v be formed​

Answer 1

Answer:

is question ka answer hoga 20 cm

Answer 2

Answer:

Object distance "u" = 30cm

Image distance "v" = -10 cm

Focal length "f"=?

Explanation:

1/f = 1/v+1/u

1/f= -1/10+ 1/30

1/f = -1/15

Focal length" f"=15 cm

A/q,

if "u" is doubled then new "u" = 2× 30= 60 cm

new "v" =

1/f= 1/v + 1/u

1/v = 1/f - 1/u

1/v = -1/15 - 1/60

1/v= -1/12

image formed = 12 cm