Question

Fill in the blanks:
The farthest point up to which the eye can see objects clearly without strain is called
1.
of the eye.
2.
A person suffering from
can see distant objects clearly but cannot see nearby
objects clearly
Hypermetropic eye can be corrected by using spectacles with a
The
is a device that produces beautiful patterns when it is rotated.
lens
3.​

Answer 1

$\huge{\green{\underline{\underline{Answer:-}}}}$

Solution:

1. The farthest point upto which the eye can see objects clearly without strain is called far point
2. A person suffering from hypermetropia can see distant objects clearly but cannot see nearby objects clearly
3. Hypermetropia eye can be corrected by using spectacles convex lens
4. The kaleidoscope is a device that produces beautiful patterns when it is rotated

Basic points:

• Far point of eye is the point at which images are clear to eye
• In hypermetropia, image is formed behind the retina and is also called long sightedness
• Convex lens converge light rays and make images on retina
• Kaleidoscope is an optical device which contain reflecting surface which helps in producing beautiful patterns