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प्रश्न
How can a concave mirror be used to obtain a virtual image of an object? Draw a diagram to illustrate your answer.
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उत्तर
A concave mirror forms a virtual image of an object when the object is placed between focus and mirror (pole)
A virtual, erect and bigger image is formed behind the mirror
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संबंधित प्रश्न
"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 stating the position of the object with respect to the pole of the mirror in both the cases for obtaining the images.
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 ______.
Draw diagram to represent the action of a concave mirror on a beam of parallel light rays. Mark on this diagram principal axis, focus F, centre of curvature C, pole P and focal length f, of the concave mirror.
State where an object must be placed so that the image formed by a concave mirror is:
(b) at infinity.
(c) the same size as the object.
Which type of mirror is used in a solar furnace? Support your answer with reason.
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
Explain the images formed by a concave mirror.
State whether true or false. If false, correct the statement.
When an object is at the centre of curvature of concave mirror the image formed will be virtual and erect.
According to cartesion sign convention, which mirror and which lens has negative focal length?
For a real object, which of the following can produce a real image?
