Advertisements
Advertisements
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.
Advertisements
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
Explain the following term related to spherical lenses:- principal focus
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
A diverging lens is used in:
(a) a magnifying glass
(b) a car to see objects on rear side
(c) spectacles for the correction of short sight
(d) a simple camera
What do you understand by the focus and focal length of a spherical mirror? Show them on the separate diagrams for each of a concave mirror and a convex mirror.
How is a spherical mirror used to converge a beam of light at a point? Name the type of mirror used.
State the direction of incident ray which after reflection from a spherical mirror gets reflected along its own path. Give a reason.
Define the following term in relation to concave mirror.
Aperture
What is the difference between virtual images of an object formed by a concave mirror and a convex mirror?
