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प्रश्न
Which type of mirror is used in the following?
Street lights
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उत्तर
Convex mirror
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संबंधित प्रश्न
Define the radius of curvature of spherical mirrors.
In a convex spherical mirror, reflection of light takes place at:
(a) a flat surface
(b) a bent-in surface
(c) a bulging-our surface
(d) an uneven surface
A mirror forms an image which is 30 cm from an object and twice its height.
(a) Where must the mirror be situated?
(b) What is the radius of curvature?
(c) Is the mirror convex or concave?
Which mirror has a wider field of view?
Which mirror always produces a virtual, erect and diminished image of an object?
What kind of mirrors are used in big shopping centres to watch the activities of the customers?
A ray of light of going towards the focus of a convex mirror becomes parallel to the principal axis after reflection from the mirror. Draw a labelled diagram to represent this situation.
Why can you not use a concave mirror as a rear-view mirror in vehicles?
Where would the image be formed by a convex mirror if the object is placed:
at infinity?
Draw labelled ray-diagrams to show the formation of image in both the case.
Give two uses of a convex mirror. Explain why you would choose convex mirror for these uses.
A shop security mirror 5.0 m from certain items displayed in the shop produces on-tenth magnification.
What is the type of mirror?
A shop security mirror 5.0 m from certain items displayed in the shop produces one-tenth magnification.
- What is the type of mirror?
- What is the radius of curvature of the mirror?
The focal length of a convex mirror is equal to its radius of curvature.
A .............. mirror is obtained on silvering the outer surface of a part of a hollow glass sphere.
The image formed by a convex mirror is
A convex mirror is used
A driver uses a convex mirror as a rearview mirror. Explain the reason with the help of a ray diagram.
When the reflecting surface is curved outwards the mirror formed will be ______.
The mirror used as rear-view mirror in vehicles ______.
The distance between an object and a convex lens is changing. It is noticed that the size of the image formed on a screen is decreasing. Is the object moving in a direction towards the lens or away from it?
