How do you draw a ray diagram for a concave mirror?
Pick a point on the top of the object and draw two incident rays traveling towards the mirror. Using a straight edge, accurately draw one ray so that it passes exactly through the focal point on the way to the mirror. Draw the second ray such that it travels exactly parallel to the principal axis.
How many ray diagrams are there for concave mirror?
For a concave mirror any of the following four ray diagrams can be used for locating the image formed: a) A ray parallel to the principal axis, after reflection, will pass through the principal focus of a concave mirror.
What is the diagram of concave mirror?
To summarize
| Position of the object | Position of the image | Nature of the image |
|---|---|---|
| At C | At C | Real and inverted |
| Between C and F | Beyond C | Real and inverted |
| At F | At infinity | Real and inverted |
| Between P and F | Behind the mirror | Virtual and erect |
What are the 6 cases of a concave mirror?
There are six possibilities of the position of object in the case of concave mirror.
- Object at infinity.
- Object between infinity and centre of curvature (C)
- Object at centre of curvature (C)
- Object between centre of curvature (C) and Principal focus (F)
- Object at Principal Focus (F)
What are the 4 rules of concave mirror?
Rules for Obtaining Images Formed by a Concave Mirror
- A ray coming parallel to the principal axis is reflected through the principal focus of the concave mirror.
- The ray of light passing the principal focus becomes parallel to the principal axis after being reflected from the mirror.
What are the 3 rules for ray diagrams?
Rules for drawing Ray Diagram in Lenses
- Rule 1 – Ray parallel to principal axis will pass through focus. For a convex lens ,
- Rule 2 – Ray passing through focus will become parallel to principal axis. For a convex lens,
- Rule 3 – Ray passing through Optical Center will emerge without deviation.
How do you find the image in a concave mirror?
When the object is located at a location beyond the focal point, the image will always be located somewhere on the opposite side of the mirror. Regardless of exactly where in front of F the object is located, the image will always be located behind the mirror.
What is the formula of concave mirror?
1/f= 1/u + 1/v. This equation is referred to as the mirror formula. The formula holds for both concave and convex mirrors.
How many ray diagrams are formed by convex mirror?
The focus and center of curvature is on the right side of the mirror So, there will only be 2 cases. In this Case, Object AB is kept far away from mirror (almost at infinite distance) Since ray parallel to principal axis appear to pass through the Focus And it is on the other side of the mirror.
How to identify concave and convex mirrors?
– The mirror coating of the concave mirror is on the outside of the spherical surface. – In concave mirrors, the center of curvature and the reflecting surface fall on the same side of the mirror. – The mirror coating of the convex mirror is on the inside of the spheri
What are the uses of a concave mirror?
Concave mirrors are used in the Vehicles headlights
What is the principal focus of a concave mirror?
Principal Focus (F) of convex mirror. The point at which. rays parallel to principal axis. coming from infinity appear to converge. after being reflected from convex mirror. is called the principal focus of convex mirror. Note: – Focus of convex mirror is behind the mirror, so it is a virtual focus.