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प्रश्न
State whether the image in part (a) is real or virtual?
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उत्तर
The image is virtual.
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संबंधित प्रश्न
How is a spherical mirror used to diverge a beam of light from a point? Name the type of mirror used.
How is the focal length of a spherical mirror related to its radius
AB and CD, two spherical mirrors, from parts of a hollow spherical ball with its centre at O as shown in the diagram. If arc AB = `1/2` arc CD, what is the ratio of their focal lengths? State which of the two mirrors will always form virtual image of an object placed in front of it and why.
Three mirrors are created from a single sphere. Which of the following - pole, centre of curvature, radius of curvature, principal axis - will be common to them and which will not be common?
Name the kind of mirror used to obtain:
A virtual and enlarged image
For an incident ray directed towards centre of curvature of a spherical mirror the reflected ray:
A point light source is kept in front of a convex mirror at a distance of 40 cm. The focal length of the mirror is 40 cm. Find the position of image.
Size of image of an object by a mirror having a focal length of 20 cm is observed to be reduced to 1/3rd of its size. At what distance the object has been placed from the mirror? What is the nature of the image and the mirror?
Define the following terms in the context of a diverging mirror:
- Principal focus
- Focal length
Draw a labelled ray diagram to illustrate your answer.
