Question

For finding the focal length of a concave mirror, where do we keep the object? What is the position of image formed? On which structure we get the image? What is the nature of the image formed?(Delhi - 2014)

Answer 1

Answer:

bhai figure kaha hai . please add image also

Answer 2

To find the focal length of a concave mirror, we place the object at infinity, that is at a very large distance from the centre of the mirror.

• The image will be formed at the focus of the mirror, at a distance as far away from the centre of the mirror as the focal length.
• The image of the nature will be real and inverted, as the rays will actually converge and not just appear to converge, like in a virtual image.