Magnification Determines Image Nature
The magnification ($m$) of a mirror provides information about the image's orientation and size relative to the object.
- Sign of Magnification:
- A positive sign indicates that the image is virtual and erect.
- A negative sign indicates the image is real and inverted.
- Magnitude of Magnification:
- If $ |m| > 1 $, the image is enlarged.
- If $ |m| < 1 $, the image is diminished.
- If $ |m| = 1 $, the image is the same size as the object.
Analyzing the Given Magnification
In this case, the magnification produced by the concave mirror is given as $ m = +3 $.
- Since the sign is positive (+), the image formed is virtual and erect.
- Since the magnitude $ |m| = |+3| = 3 $, which is greater than 1, the image is enlarged.
Combining these observations, the image formed by the concave mirror when the magnification is +3 is virtual, erect, and enlarged.
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?
- Which of the following mirrors is used by doctors to focus a parallel beam of light on the patient's organs like teeth for the examination?
- The radius of curvature of a spherical mirror is 20 cm. Its focal length 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
