A) An object is placed at a distance of 30 cm from a concave mirror of focal length 15 cm. Write characteristic of the images formed. Also draw its ray diagram (5 marks)
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Explanation:
formula related to focal length f, object-to-mirror distance u and image-to-mirror distance v is given by
solving the above eqn for v, we get v = 30 cm
(1) image is formed at a distance 30 cm from concave mirror
(2) Since image distance and object distance are same ( both are at 2F), magnification = 1
Image and object are same size.
(3) image is real
(4) image is inverted
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