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प्रश्न
Which kind of mirror is used in the headlights of a car? Why is it used for this purpose?
उत्तर
A concave mirror is used in the headlights of a car. A light bulb placed at the focus of a concave mirror reflector produces a strong, parallel-sided beam of light. This is because the diverging light rays of the bulb are collected by the concave reflector and then reflected.
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संबंधित प्रश्न
Described with the help of a diagram, the nature, size and position of the image formed when an object is placed beyond the centre of curvature of a concave mirror.
With the help of a labelled ray diagram, describe how a converging mirror can be used to give an enlarged upright image of an object.
Give two uses of concave mirrors. Explain why you would choose concave mirrors for these uses.
Write down a formula for the magnification produced by a concave mirror.
in terms of height of object and height of image
Name the lens which can concentrate sun's rays to a point and burn a hole in a piece of paper.
To find the focal length of a concave mirror Rahul focuses a distant object with this mirror. The chosen object should be
(1) a tree
(2) a building
(3) a window
(4) the sun
Why does obtaining the image of the sun on paper with the help of a concave mirror burn the paper?
The radius of curvature of a concave mirror whose focal length is 5cm is ______
According to cartesion sign convention, which mirror and which lens has negative focal length?
Beams of light are incident through the holes A and B and emerge out of box through the holes C and D respectively as shown in the figure. Which of the following could be inside the box?
