Question

Show that for virtual object, a convex mirror gives (a) real and erect image of u smaller than
f and (b) virtual and inverted image for u greater than f ​

Answer 1

Answer:

(a) The rays are converging towards the point O. O acts as a virtual object

1v+1u=1f

1v=1f−1u

u and f are +ve,u<f

m=−vu=+ve

We get real and erect image.

(b) Here u>f,u,f:+ve

1v+1u=1f⇒1v=1f−1u

v:+ve

m=−vu=−ve

We get virtual and inverted image.