Question

describe the nature of the image formed when object is placed at a distance of 20cm from a concave mirror of focal length 10cm.​

Answer 1

Answer:

real and inverted

Explanation:

1/v+1/u=1/f

1/v+1/-20=-1/10

1/v=-1/10+1/20

1/v=-1/20

or v=20m

hence the negative sign means that the image is formed on the left side of the mirror. Thus it is real and inverted image formed at a distance of 20m from the mirror