Question

A student studying the similarities and differences between a camera and the human eye makes the following observations:
(I) Both the eye and the camera have convex lenses.
(II) In order to focus, the eye lens expands or contracts while the camera lens moves forward or backward.
(III) The camera lens produces upside down real images while the eye lens produces only upright real images.
(IV) A screen in camera is equivalent to the retina in the eyes.
(V) A camera adjusts the amount of light entering in it by adjusting the aperture of the lens. In the eye the cornea controls the amount of light.
The correct statements are

• A. Only (I), (II) (IV)
• B. Only (I), (III), (V)
• C. Only (I), (II), (IV), (V)
• D. All

Answer 1

The correct option is A Only (I), (II) (IV)

Statements I and II are correct that both human eye and camera have convex lenses and the eye lens either contracts or expands in order to focus the image with the help of iris and camera lens moves forward or backward to focus the image.
Statement III is incorrect because eye lens produces inverted image on retina.
Statement IV is correct that retina in the eye acts as screen on which image is formed.
Statement V is incorrect because amount of light entering in the eye is controlled by pupil.
So, option A is correct.