Advertisements
Advertisements
प्रश्न
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
Advertisements
उत्तर
A light ray coming from a point on object AB passes through the principal focus and after reflection, it becomes parallel to the principal axis in accordance with laws of reflection and the other ray passing through the centre of curvature strikes the mirror normally i.e. 90 degrees. Hence it will reflect back. These two reflected rays coincide at a point where the image is formed. The image, A'B' is real, inverted, and diminished in size.
APPEARS IN
संबंधित प्रश्न
What type of image is formed:
on a cinema screen?
What kind of mirror is required for obtaining a virtual image of the same size as the object?
The letter F is placed in front of a plane mirror:
What is the name of the phenomenon involved?
Name the spherical mirror which can produce a real and diminished image of an object.
An optical device has been given to a student and he determines its focal length by focusing the image of the sun on a screen placed 24 cm from the device on the same side as the sun. Select the correct statement about the device.
(A) Convex mirror of focal length 12 cm
(B) Convex lens of focal length 24 cm
(C) Concave mirror of focal length 24 cm
(D) Convex lens of focal length 12 cm
AB and CD, two spherical mirrors, from parts of a hollow spherical ball with its centre at O as shown in the diagram. If arc AB = `1/2` arc CD, what is the ratio of their focal lengths? State which of the two mirrors will always form virtual image of an object placed in front of it and why.
An object is placed at 4 cm distance in front of a concave mirror of radius of curvature 24 cm. Find the position of image. Is the image magnified?
Answer the following question:
Distinguish between the convex mirror and the concave mirror.
What is the relationship between the focal length and radius of curvature?
The diagram below shows the parallel rays incident on a convex mirror. C is the centre of the curvature of the mirror. By drawing the paths of the reflected rays, label the focus F and hence find the focal length of the mirror.
