Physics

Problem

A concave mirror with radius of curvature

40\,\text{cm}

forms an image of an object placed

30\,\text{cm}

in front of it. Which option correctly gives the image distance and the nature of the image? a)

+60\,\text{cm}

, virtual and erect b)

-12\,\text{cm}

, real and inverted c)

-60\,\text{cm}

, real and inverted d)

+12\,\text{cm}

, virtual and erect