Question

pls answer this. I have exam tomorrow. ​

Answer 1

Explanation:

Given , In Convex lens the image is same side as object is, that means image is virtual

i.e., object is placed between focal and optical center.

Given, magnification m = +2 = v/u

=> v = 2u

Now, apply lens formula

1/f = 1/v - 1/u

=> 1/10 = 1/2u - 1/u

=> u = -5cm

Hence , object is placed 5cm from left side of mirror.