Physics of sight 201-205
When light travelling in a certain medium falls on the surface of another medium, a part of it turns back in
The inability of eye to see the objects clearly is called
To describe the change in speed of light in a medium, the term used is called index of
In human eye, the image is formed
When a ray of light enters from denser medium to rare medium it bends
Light enters the eye through a transparent membrane known as
The reflection by the rough surfaces is called
The lens which is thin at center and thick at edges is
The nature of light is wave as well as particle, thus its nature is
The colored portion of the eye that controls the amount of light reaching the retina is known as
The human eye acts like a
The speed of light in air is approximately
Reflection by smooth surfaces is called
The line passing through the two centers of curvatures of the lens is called
The endoscope used to examine the throat is called
The angle of reflection and the angle of reflection are
The entire light is reflected into the denser medium, which is called total
The distance between the optical center and principal focus is
The core is made of glass or plastic of relatively
Rough surfaces reflect rays of light in
Speed of light in air/speed of light in a medium is equal to the index of
The condition in which the image is formed behind the retina is called
The endoscope used to examine the stomach is called
In the fiber-optic thread, the refractive index of the inner core is
Some people can not see distant objects clearly without spectacles. This defect is called
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до активної роботи у класі та вдома
