The magnification produced by a spherical lens is +2.5 . What is the nature of image ?

Explanation

To determine the nature of the image produced by a spherical lens when the magnification is +2.5, we can follow these steps:

### Step 1: Understand Magnification
Magnification (m) is defined as the ratio of the height of the image (h') to the height of the object (h). It can be expressed as:
\[ m = \frac{h'}{h} \]

### Step 2: Analyze the Sign of Magnification
In optics, the sign of magnification indicates the nature of the image:
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