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?
- If a spherical mirror is immersed in a liquid, its focal length will
- 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?
- 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:
- An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. The magnification is:
When an object is kept at a distance 20 cm in front of a concave mirror, a real image is formed at the centre of curvature of the mirroe. Magnification produced by the mirroe is ______________ .
When an object is kept in front of a concave mirror of a focal length of 10 cm, a real image is formed at a distance of 20 cm in front of the mirror. Here, the object distance is .............
Important Questions from Mirrors and Images
What type of mirror is used in the headlights of vehicles?
- A concave mirror forms a real and inverted image of a distant object at a distance of $15 \text{ cm}$ from the mirror.
If an object is placed $20 \text{ cm}$ in front of this mirror, what will be the nature and magnification of the image formed? The number of images observable between two parallel mirror is
An object is placed at a distance of \(\frac{f}{2}\) from a convex lens. The image will be
Which of the following pair is correct?
I. Mirror formula : (1/v) – (1/u) = (1/f)
II. Lens formula : (1/v) + (1/u) = (1/f)
