A thin convex lens has focal length

PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction

Problem

10\,\text{cm}

. An object is placed

30\,\text{cm}

in front of the lens. Which of the following correctly gives the image distance and nature? (a)

7.5\,\text{cm}

on the opposite side; real and inverted (b)

15\,\text{cm}

on the same side; virtual and erect (c)

15\,\text{cm}

on the opposite side; real and inverted (d)

20\,\text{cm}

on the opposite side; real and inverted