Question

a convex mirror of focal length 20cm forms an image of an object kept at the distance of 30 cm from the mirror find position and nature of the image formed by it

Answer 1

Dear Student

$$\begin{gathered} \frac{1}{f}=\frac{1}{v}+\frac{1}{u} \\ \frac{1}{v}=\frac{1}{f}-\frac{1}{u} \\ \frac{1}{v}=\frac{-1}{20}+\frac{1}{30} \\ v=-60cm \\ m=-v/u=-2 \\ Theimageisrealandinvertedasmis-tive \\ REGARDS \end{gathered}$$