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संबंधित प्रश्न
A small object is placed 150 mm away from a diverging lens of focal length 100 mm.
(i) Copy the figure below and draw rays to show how an image is formed by the lens.
Figure
(ii) Calculate the distance of the image from the lens by using the lens formula.
The letters on the front of an ambulance are written laterally inverted like 
. Give reason.
For what position of object, the image formed by a concave mirror is magnified and erect?
The image formed by a convex mirror is of size one third the size of object. How are u and v related?
Define the following term in relation to concave mirror.
Principal axis
Define the following term in relation to concave mirror.
Focal length
An object is placed in front of a concave mirror as shown in the following figure. By scale drawing, find the nature of the image. Given f = 10 cm, v = 30 cm.
The following Figure shows a concave mirror MM' on which a ray of light incident from a point P gets reflected to meet the principle axis at O.
(a) Find, by construction, the position of the centre of curvature of the concave mirror.
(b) Write down the value for the radius of curvature of the mirror.
(c) Calculate the focal length of the mirror.
(d ) Which relation is used in deducing the focal length from the radius of curvature?
Define focal length.
Name the type of mirror used in the following situation:
Solar furnace
Support your answer with reason.
