Module 3
According to the law of reflection, the angle between reflected ray and perpendicular to the point of light ray incidence (normal) is
According to the law of refraction, the angle between refracted ray and perpendicular to the point of light ray incidence (normal) is
Refraction occurs because light
Total internal reflection occurs when light travels from one medium (1) to another (2), where
7. Optical fibers in medicine are used to
Fiber optics endoscopy is based on effect called
According to Maxwell’s researches, light in wave optics is considered to be a
In which medium light has the higher velocity?
The average velocity of light is
If the light reflects completely from the surface between two media the effect is called
If the light beam is going around the appropriate obstacle, & doesn’t reflect from it, the process is called
If the vector of electric field of light wave oscillates in one plane, this effect is called
The result of light waves superposition. Only for coherent light waves.
If the plane of polarization rotates clockwise then the optically active substance is called
Polarimetry is being used for
The eye is a lens system which forms an image
The eyeball has a diameter of:
The outer covering of eyeball is a nearly opaque fibrous layer called:
Light enters the eye through:
The iris is a colored ring behind the:
The inner surface of the eyeball is:
The eye retina is most sensitive at light in:
The total refractive power of crystalline lens is:
If the crystalline lens would be removed from the eye and then surrounded by air.
The curvature of crystalline lens:
The total refractive power of eye, when it is accommodated for distant vision is:
The accommodation is:
The most distant point the eye can focus on is called:
The point at the distance 25 cm from eye is called:
When the ciliary muscle is completely relaxed:
When the ciliary muscle contracts as strongly as possible:
During vision examination, hyperopia was diagnosed for a man. What glasses for the spectacles he needs?
What is myopic eye?
During vision examination, astigmatism was diagnosed for a man. What glasses for the spectacles he needs?
The ability of the lens to change its shape:
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