Question

An object is kept at a distance of 15 cm from a concave mirror whose radius of curvature is 30cm.what is the position of the image?​

Answer 1

The position of the object is at the Focus.

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$\rule{300}{2}$

$\huge\bold\blue{Fruti}$

Answer 2

Whenever object is placed at the focus it’s image will always forms at the focus only and it’s nature will be real and inverted.
f = R/2
R = 30 cm
Af = 30/2 = 15 cm.