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प्रश्न
The focal length of a convex mirror is equal to its radius of curvature.
पर्याय
True
False
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उत्तर
False.
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संबंधित प्रश्न
What type of mirror should be used as a shop security mirror?
What would your image look like if you stood close to a large:
convex mirror?
Draw a labelled ray diagram to show the formation of image in a convex-mirror when the object is at infinity. Mark clearly the pole and focus of the mirror in the diagram.
An object is placed at a distance of 10 cm from a convex mirror of focal length 5 cm.
(a) Draw a ray-diagram showing the formation image
(b) State two characteristics of the image formed
(c) Calculate the distance of the image from mirror.
Explain why, a real image can be projected on a screen but a virtual image cannot.
An object is placed at a distance of 100 cm from each of the above lenses A and B. Calculate
- image distance, and
- magnification, in each of the two cases.
When the reflecting surface is curved outwards the mirror formed will be ______.
Assertion: Convex mirrors are used as a rearview mirror in vehicles for observing traffic at our back.
Reason: A convex mirror has a much larger field of view.
Higher-Order Thinking Skills:
A convex mirror is in water. What should be the change in its focal length?
