Question

Even when the objects are at different distances from the eye, clear images are formed on the retina. What can be the reason behind this?

• A. Power of accommodation
• B. Power of lens
• C. Long eyeball
• D. Short eyeball

Answer 1

The correct option is A

Power of accommodation

When lenses are used to form images, we have to adjust the position of the screen along with the position of the object to get a clear image. Similarly, in the case of an eye, as the position of objects changes, ciliary muscles of the eye change its shape and hence, adjust the focal length of the eye lens which results in the formation of the clear image on the retina. This is called the power of accommodation.