Identify the correctly matched pair

Options

A. Visual purple - Rhodopsin
B. Cones -Vision in dark
C. Correction of myopia-Use of convex lens
D. Blind spot - Region of maximum concentration of rods and cones

Answer

To solve the question "Identify the correctly matched pair," we will evaluate each option provided and determine if they are correctly matched.

### Step-by-Step Solution:

1. **Evaluate Option 1: Visual Purple and Rhodopsin**
- Visual purple is indeed another name for rhodopsin, which is a photoreceptor protein found in the retina. It is sensitive to light and helps in vision, particularly in low-light conditions. Therefore, this pair is correctly matched.
- **Conclusion:** This option is correct.

2. **Evaluate Option 2: Reason in Dark Light and Cones**
- Cones are photoreceptor cells that function best in bright light and are responsible for color vision. They do not primarily function in dark light; instead, rods are the photoreceptors that are more active in low-light conditions.
- **Conclusion:** This option is incorrect.

3. **Evaluate Option 3: Correction of Myopia with Convex Lens**
- Myopia, or nearsightedness, is corrected using concave lenses, not convex lenses. Concave lenses help diverge light rays before they enter the eye, allowing the image to be focused on the retina.
- **Conclusion:** This option is incorrect.

4. **Evaluate Option 4: Blind Spot and Maximum Concentration of Rods and Cones**
- The blind spot is the area on the retina where the optic nerve exits the eye, and there are no photoreceptor cells (rods or cones) present in this region. Therefore, this statement is incorrect.
- **Conclusion:** This option is incorrect.

### Final Answer:
The correctly matched pair is **Option 1: Visual Purple and Rhodopsin**.