The magnification produced by a spherical lens is `+0.75`. What is the:
a) nature of image?
b) nature of lens?

Explanation

To solve the question regarding the magnification produced by a spherical lens, we will analyze the given information step by step.

### Step 1: Understand the Magnification Value
The magnification (m) produced by a lens is given as +0.75. The sign and value of magnification provide important information about the nature of the image and the lens.

### Step 2: Determine the Nature of the Image
- A positive magnification indicates that the image is virtual. This is a key point in optics:
- If m > 0, the image is virtual and upright.
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