Question

The image formed on the retina of human eye is

• A. real and inverted
• B. virtual and erect
• C. real and erect
• D. virtual and inverted

Hint:

The eye lens forms a real and inverted image on the retina, but the brain interprets it as upright.

Answer 1

The Correct Option is A

Concept:
The human eye works like a camera. The convex lens present in the eye focuses incoming light rays onto the retina, which acts as a screen. For an image to be formed on a screen, it must be a real image. The image formed on the retina is also inverted. Our brain later interprets the image correctly, so we perceive objects in the upright position.

Step 1: Understanding image formation in the human eye.
Light rays from an object enter the eye through the cornea and pass through the eye lens. The eye lens converges these rays and forms the image on the retina. Since the light rays actually meet on the retina, the image formed is real.

Step 2: Determining the orientation of the image.
The image produced by a convex lens on a screen is inverted. Therefore, the image formed on the retina is: \[ \boxed{\text{Real and Inverted}} \]

Step 3: Checking the incorrect options.

• A virtual image cannot be formed on a screen.
• The image on the retina is not erect.
• Hence all other options are incorrect. Therefore, the correct option is: \[ \boxed{(1)\ \text{real and inverted}} \]