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Question
A spherical mirror is obtained as shown in the figure from a hollow glass sphere. if an object is positioned in front of the mirror, what will be the nature and magnification of the image of the object? (Figure drawn as schematic and not to scale)
Options
Inverted, real and magnified.
Erect, virtual and unmagnified.
Inverted, real and unmagnified.
Erect, virtual and magnified.
Solution
Inverted, real and unmagnified.
Explanation:
Given: A spherical mirror is obtained from a hollow glass sphere of radius r = 8 cm, an object is placed in front of the mirror at u = 10 cm.
To find: The nature of image formed by the mirror.
From the construction, centre of curvature of the mirror is at C = 8 cm and focal point is at (f = 4 cm) from the pole of the mirror. As the object is kept slightly beyond the centre of curvature of the mirror (C), the image formed will be inverted, real and unmagnified. The location of the image will be between (C) and focal point (f).
