Question

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

Answer 1

Answer:

If an image is placed at a distance greater than the focal length of a concave mirror, the image would be real and inverted. Otherwise it would be a virtual image.

If the distance of the object is greater than twice the focal length, the image would be closer to the mirror than the object and the size of the image would be lesser than the size of the object.

If the distance of the object is lesser than twice the focal length but more than the focal length, the image would be farther to the mirror than the object and the size of the image would be greater than the size of the object.

If the distance of the object is equal to twice the focal length, the distance of the image from the mirror would be the same as that of the object and the size of the image would also be same as the size of the object.

If the distance of the object is equal to the focal length, the image would be formed at infinity.

In this case, the distance of the object from the mirror is twice the focal length.

Explanation:

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Answer 2

Answer:the image formed will be real , inverted and of the same size as the object.

Explanation:focal length is 10 cm and object is placed at 20 cm. This means that the object is placed at the centre C . The focus beF.