The magnification produced by a spherical lens is +2.5. What is nature of the image and nature of the lens?
Answers
Answer:
The spherical mirror is a concave mirror and the nature of the image is virtual.
Explanation:
Step 1 : Identify the properties of the images formed by convex and concave mirrors.
Convex mirrors :
1) The image is virtual.
2) The image is upright.
3) The image is reduced in size.
4) The image is formed behind the mirror.
No matter the position of the object, convex mirrors will always produce images with the above characteristics.
As for concave mirrors the nature of the image depends on where the object is placed.
Most images produced by concave mirrors are real and inverted.
Only concave mirrors can produce an image that is magnified.
Step 2 : Magnification and nature of the image.
A negative magnification indicates that the image is real whereas a positive magnification indicates that the image is virtual.
Step 3 : Answer the question.
Since the magnification is positive, the image formed is virtual.
Only concave mirrors produce magnified images hence the spherical mirror is a concave mirror.
For a concave mirror to produce a virtual image, the object must be placed between optical center and the focal length.
The nature of the image formed is :
1) Virtual
2) Upright
3) Magnified.
Answer:
Explanation:The value of magnification gives here is 2.5 (Which is more than 1). So, the image is larger than the object or magnified. A virtual, erect and magnified image can be formed only by a convex lens, therefore, the nature of lens is convex.