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प्रश्न
Draw a ray diagram to show that a convex mirror has a wider field of view.
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उत्तर
In the case of a convex mirror, all rays incident parallel to the principal axis appears to diverge from a Focal point. So it has a wider field of view as it converges all rays to a single point.
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Pole
What type of image is formed:
on a cinema screen?
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
Why is a hole burnt in the carbon paper?
What do you understand by the focus and focal length of a spherical mirror? Show them on the separate diagrams for each of a concave mirror and a convex mirror.
Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
Name the kind of mirror used to obtain:
A virtual and diminished image
Define the term Aperture.
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?
The radius of curvature of a spherical mirror is 18 cm. What is the focal length of this mirror?
Visit a nearby hospital. You can also visit the clinic of an ENT specialist, or a dentist. Request the doctor to show you the mirrors used for examining ear, nose, throat and teeth. Can you recognise the kind of mirror used in these instruments?
