The image formed by a concave mirror is real, inverted and highly diminished (much smaller than the object). The object must be : (a) between pole and focus (b) at focus (c) at the centre of curvature (d) at infinity

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Solution

If the image is real, inverted and highly diminished then it is kept at infinity.

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The image formed by a concave mirror is real, inverted and of the same size as the object. The position of the object must then be : (a) at the focus (b) between the centre of curvature and focus (c) at the centre of curvature (d) beyond the centre of curvature

Q. The real image formed by a concave mirror is smaller than the object if the object is:

(a) between centre of curvature and focus
(b) at a distance greater than radius of curvature
(c) at a distance equal to radius of curvature
(d) at a distance equal to focal length

Q. If a concave mirror forms a real magnified image of an object, the object is located

(a) between pole and focus
(b) between focus and centre of curvature
(c) beyond centre of curvature
(d) at centre of curvature

The image formed by a concave mirror is virtual, erect and magnified. The position of object is : (a) at focus (b) between focus and centre of curvature (c) at pole (d) between pole and focus

Question 30
Draw ray diagrams showing the image formation by a concave mirror when an object is placed

(a) between pole and focus of the mirror
(b) between focus and centre of curvature of the mirror
(c) at centre of curvature of the mirror
(d) a little beyond centre of curvature of the mirror
(e) at infinity

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