Mirror for Focusing Light
Doctors need a mirror that can concentrate a parallel beam of light onto a specific small area for examination, such as looking at teeth. This requires a mirror with converging properties.
Types of Mirrors and Their Properties
- Concave Mirror: Reflects parallel light rays and converges them to a focal point. This concentration of light is ideal for examination purposes.
- Convex Mirror: Reflects light rays outwards, causing them to diverge. This provides a wider field of view but does not focus light.
- Plane Mirror: Reflects light rays without changing their convergence or divergence. It provides a true image but does not focus light.
Selecting the Right Mirror
To focus a parallel beam of light onto a patient's organs like teeth, a mirror that converges light is required. A concave mirror has precisely this property. It gathers the parallel light rays and directs them to a focal point, intensifying the light on the target area for better visibility during examination.
Convex and plane mirrors do not possess the necessary focusing ability for this specific medical application.
Conclusion
Therefore, the mirror used by doctors to focus a parallel beam of light on patient's organs for examination is a concave mirror.
Similar Questions
- If an object is placed between infinity and the pole (P) in front of a convex mirror, what type of image will be formed?
- A concave mirror produces three times magnified (enlarged) real image of object placed at 10 cm in front of it. Which option describes the image correctly?
- The radius of curvature of a spherical mirror is 20 cm. Its focal length is:
- The nature of the image formed by a concave mirror if the magnification produced by the mirror is +3 is:
Important Questions from Mirrors and Images
Which one of the following telescopes contains only mirrors?
The correct relation between the radius of curvature R and focal length f of a spherical mirror is
Spherical mirror formula relating an object distance ‘u’, image distance ‘v’ and focal length of mirror ‘f’ may be applied to a plane mirror when
The image of an object formed by a plane mirror is
The image we see in plane mirror is
