Question

Where an object should be placed in front of a concave mirror of focal length 20cm?

Answer 1

Answer:

Te object should be placed between The centre of curvature and focus at the distance of 30cm from the mirror to get the image real and inverted

Answer 2

Answer:

If you want to get a virtual image , place it between the focus and pole .

If you want a real image , you can place it anywhere from infinity to the focus .

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