The correct answer is (b) Beyond centre of curvature
A concave mirror can form a real, inverted, and diminished image of an object if the object is placed between the focus and twice the focal length (f and 2f) of the mirror.
The image will be real and appear beyond 2f.
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The focal length of a small concave mirror is 2.5 cm. In order to use this concave mirror as a dentist's mirror, the distance of tooth from mirror should be
When an object is placed at the centre of curvature in front of a concave mirror, the characteristics of the image formed are:
The radius of curvature of a plane mirror is
If an image formed after reflection from a mirror is virtual and high diminished, then the position of the object and type of mirror is:
Magnification produced by a spherical mirror is equal to:
Suppose Ram has placed a ball in front of a concave mirror of focal length (f )at various distances (u) and he has measured the corresponding image distances (v). From the values of u and v, Ram is able to plot a graph of 1/v against 1/u. From the graph, Ram has observed that x intercept and y intercept are 0.1" " cm and 0.11" " cm, respectively. Then the focal length of the mirror is:
An object of height 3 cm is placed at a distance 30 cm in front of a convex lens of focal length 20 cm. The height of the image will be:
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