Question

where is the image located when an objectis placed 30cm from a convex lens with a focal length of 10cm?​

Answer 1

15 cm

Step-by-step explanation:

using the thin lens formula for convex lens

`(1)/(f) = (1)/(p) + (1)/(q)\\ \\where f = focal length \\ p = object distance \\ q = image distance\\`

so,

`(1)/(q) = (1)/(f) - (1)/(p) \\\\(1)/(q) = (1)/(10) - (1)/(30) \\(1)/(q) = (2)/(30)\\(1)/(q) = (1)/(15cm)`

so,

q = 15 cm