Advertisements
Advertisements
Question
AB is the object, A'B' is the image, and MM' is the position of the mirror. Complete the ray diagram showing the formation of the image and find the focal length of the mirror.
Advertisements
Solution
A light ray coming from a point on object AB is reflected from the surface of the mirror, it passes through the principal focus and the other ray passing through the center 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. The focal length was found to be 16 mm.
APPEARS IN
RELATED QUESTIONS
Define the following term in the context of spherical mirrors:- Centre of curvature
Give one use each of a concave and a convex mirror.
Define the Focal length of a spherical mirror
A ray of light strikes a plane mirror at an angle of 40° to the mirror surface. What will be the angle of reflection?
Name the two types of spherical mirrors. What type of mirror is represented by the:
back side of a shining steel spoon?
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
What name is given to the distance between spherical mirror and carbon paper?
A 2.0 cm tall object is placed 40 cm from a diverging lens of focal length 15 cm. Find the position and size of the image.
State the direction of incident ray which after reflection from a spherical mirror gets reflected along its own path. Give a reason.
