3d module 207-208 am
X-rays are the kind of:
The wavelength of X-rays ranges:
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 vector of electric field of light wave oscillates in one plane, this effect 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:
The curvature of crystalline lens:
The X-rays with relatively long wavelength are called:
The wavelength of soft X-rays is:
The greatest penetrating ability is inherent to the:
X-rays are produced when:
The potential difference in modern X-ray tube attains:
This part of X-ray tube emits electrons:
The anode in X-ray tube may be made of:
Much of the energy of electrons in X-ray tube:
When the high-velocity electrons are retarded by the electric field of anode:
When a fast-moving electrode penetrates into the internal atomic orbitals and knocks out one of their electrons:
Braking X-rays have:
Characteristic H-rays have such spectrum:
Створюйте онлайн-тести
для контролю знань і залучення учнів
до активної роботи у класі та вдома
