3d module 212 am
The ability of the lens to change its shape:
During vision examination, astigmatism was diagnosed for a man. What glasses for the spectacles he needs?
What is myopic eye?
During vision examination, hyperopia was diagnosed for a man. What glasses for the spectacles he needs?
When the ciliary muscle contracts as strongly as possible:
When the ciliary muscle is completely relaxed:
The point at the distance 25 cm from eye is called:
The most distant point the eye can focus on is called:
The accommodation is:
The total refractive power of eye, when it is accommodated for distant vision is:
The curvature of crystalline lens:
If the crystalline lens would be removed from the eye and then surrounded by air.
The total refractive power of crystalline lens is:
The eye retina is most sensitive at light in:
The inner surface of the eyeball is:
These modern method of X-ray diagnostics gives possibility to get clear images of any part of human body, including soft tissues:
This method X-ray diagnostics applies fluorescence screen:
Attenuation of the parallel X-ray beam passing through a matter is defined by:
X-rays may cause:
The secondary photon of X-rays is formed in the process of:
Compton effect is also called:
If the energy of photon is more than photoelectric work function and it may impinge on one of the atomic electrons this interaction is called:
If the direction of photon propagation changes but the wavelength remains unchanged this process is called:
This kind of interaction between X-rays and matter when the X-rays photons collide with the interior atomic electrons that is characterized by strong coupling with the nuclei is called:
The frequency of spectrum lines is defined by:
Characteristic H-rays have such spectrum:
Braking X-rays have:
When a fast-moving electrode penetrates into the internal atomic orbitals and knocks out one of their electrons:
When the high-velocity electrons are retarded by the electric field of anode:
Much of the energy of electrons in X-ray tube:
The anode in X-ray tube may be made of:
This part of X-ray tube emits electrons:
The potential difference in modern X-ray tube attains:
X-rays are produced when:
X-rays are the kind of:
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