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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 spherical mirror produces an image of magnification -1.0 on a screen placed at a distance of 30 cm from the pole of the mirror.
(i) Write the type of mirror in this case.
(ii) What is the focal length of the mirror ?
(iii) What is the nature of the image formed ?
(iv) Draw the ray diagram to show the image formation in this case.
For a convex mirror, parallel rays of light appear to diverge from a point called the ______.
Draw a ray diagram showing how a concave mirror can be used to produce a real, inverted and diminished image of an object.
The real image formed by a concave mirror is larger than the object when object is:
(a) at a distance equal to radius of curvature
(b) at a distance less than the focal length
(c) between focus and centre of curvature
(d) at a distance greater than radius of curvature
A converging mirror forms a real image of height 4 cm of an object of height 1 cm placed 20 cm away from the mirror:
- Calculate the image distance.
- What is the focal length of the mirror?
An object 3 cm high is placed at a distance of 10 cm in front of a converging mirror of focal length 20 cm. Find the position, nature, and size of the image formed.
What type of image/images are formed by:
a convex mirror?
Draw a ray diagram to show the formation of image of an object placed between the focus and centre of curvature of a concave mirror. State the position, size and nature of the image.
Rays from Sun converge at a point 15 cm in front of a concave mirror. Where should an object be placed so that size of its image is equal to the size of the object?
The mirror having reflection surface curved outward ______.
