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प्रश्न
A driver uses a convex mirror as a rearview mirror. Explain the reason with the help of a ray diagram.
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उत्तर
A convex mirror always forms a small and upright image between pole and focus. That means in a small area of mirror driver can see all the traffic coming from behind.
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संबंधित प्रश्न
A student obtains a blurred image of a distant object on a screen using a convex lens. To obtain a distinct image on the screen he should move the lens
(A) away from the screen
(B) towards the screen
(C) to a position very far away from the screen
(D) either towards or away from the screen depending upon the position of the object
Draw diagram to show how a convex mirror can be used to give a large field of view.
The image formed by a spherical mirror is virtual. The mirror will be:
The diagrams show the appearance of a fork when placed in front of and close to two mirrors A and B, turn by turn.
- Which mirror is convex?
- Which mirror is concave?
Give reasons for your choice.
A convex mirror used as a rear-view mirror in a car has a radius of curvature of 3 m. If a bus is located at a distance of 5 m from this mirror, find the position of image. What is the nature of the image?
Draw a diagram to represent a convex mirror. On this diagram mark principal axis, principal focus F and the centre of curvature C if the focal length of convex mirror is 3 cm.
Identify the device used as a spherical mirror or lens in following case, when the image formed is virtual and erect in case.
Object is placed between infinity and device, image formed is diminished and between pole and focus, behind it.
The most common example of a convex mirror is the make – up mirror.
The image formed by a convex mirror is always ______.
The field of view is maximum for ______.
