Advertisements
Advertisements
प्रश्न
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.
उत्तर
The device is Convex mirror.
APPEARS IN
संबंधित प्रश्न
Why do we prefer a convex mirror as a rear-view mirror in vehicles?
Where would the image be formed by a convex mirror if the object is placed:
at infinity?
Draw labelled ray-diagrams to show the formation of image in both the case.
A boy is standing in front of and close to a special mirror. He finds the image of his head bigger than normal, the middle part of his body of the same size, and his legs smaller than normal. The special mirror is made up of three types of mirrors in the following order from top downwards:
(a) Convex, Plane, Concave
(b) Plane, Convex, Concave
(c) Concave, Plane, Convex
(d) Convex, Concave, Plane
Draw a diagram to represent a convex mirror. On this diagram mark principal axis, principal focus F and the centre of C if the focal length of convex mirror is 3 cm.
A shop security mirror 5.0 m from certain items displayed in the shop produces on-tenth magnification.
What is the type of mirror?
Name two factors on which the focal length of a lens depends.
Explain why, a real image can be projected on a screen but a virtual image cannot.
At the point of incidence, a line drawn at right angles to the surface, separating the two media, is called the normal.
Why are the mirrors fitted on the outside of cars convex?
The field of view is maximum for ______.