Q9 of 25 Page 10

"The magnification produced by a spherical mirror is -3". List four information’s you obtain from this statement about the mirror/image. ( CBSE 2016)

The four information’s obtained from “Magnification produced by a spherical mirror, m = -3” are as follows:

1. The image is 3 times magnified than that of object.


2. The negative sign shows that the image is inverted.


3. The image is real.


4. The mirror used is concave mirror.

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7

An object is placed at a distance of 30 cm from a concave lens of focal length 15 cm. List four characteristics (nature, position, etc.) of the image formed by the lens. ( CBSE 2013, 2012)

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List four characteristics of the images formed by plane mirrors. ( CBSE 2008)

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A concave mirror of focal length 15 cm can form a magnified erect as well as inverted image of an object placed in front of it".Justify this statement. ( CBSE 2014, 2013) 

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Draw a ray diagram to show the path of the reflected ray corresponding to an incident ray of light parallel to the principal axis of a convex lens and show that the angle of incidence and the angle of reflection on it. ( CBSE 2015, 2014)