Question

A concave mirror has a focal length of 20cm .at what distance from the mirror should a 4cm tall object be placed so that it forms an image at a distance of 30cm from the mirror? also calculate the size of the image formed

Answer 1

$\huge\mathfrak{Answer:-}$

⭕ Height of Image is 2cm

⭕ The image formed is real and inverted.

⭕ Object is placed at a distance of 60cm from the concave mirror.

⭕ We have to apply mirror formula and magnification formula to obtain answer.

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