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A spherical mirror and a thin spherical lens have each a focal length of –15 cm. The mirror and the lens are likely to be
Complete the following ray diagram to show the formation of image:
Mention the nature, position and size of the image formed in this case.
State the sign of the image distance in this case using the Cartesian sign convention.
An object is placed in front of a convex mirror at infinity. According to the New Cartesian Sign Convention, the sign of the focal length and the sign of the image distance in this case are respectively :
Assertion: A convex mirror always forms an image behind it and the image formed is virtual. Reason: According to the sign convention, the focal length of a convex mirror is positive.
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