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प्रश्न
Why does a driver use a convex mirror instead of a plane mirror as a rear view mirror?
Illustrate your answer with the help of a ray diagram.
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उत्तर
A convex mirror diverges the incident beam and always forms a virtual, small and erect image between its pole and focus. Thus, a driver can see all the traffic approaching from behind. This fact enables the driver to use it as a rear view in vehicles to see all the traffic approaching from behind.
संबंधित प्रश्न
Define Radius of curvature of the spherical mirror
A ray of light is incident normally on a plane mirror. What will be the
angle of reflection?
Explain the following terms :
Pole, Centre of curvature, Radius of curvature, Principal axis. Show them on separate diagrams for each of the concave and convex mirrors.
Define the term principal focus in case of convex mirror. Draw a convex mirror and show its principal focus and focal length clearly.
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
Geometric centre of the spherical mirror is ______.
The minimum length of the mirror required to see the full image of the person is half ‘ of his height.
