Laboratory class №10. Determination of the refractive index of a liquid using a refractometer.
- What phenomenon is called refraction of light?
- What is the physical meaning of absolute and relative refractive indices?
- Formulate the laws of light refraction.
- What is called the limiting angle of refraction?
- Tell us about the phenomenon of total internal reflection of light.
- Tell us about the work of the refractometer (ray path in transmitted and reflected light).
- Tell us about the use of refraction in biomedical research.
- What is the purpose of fiber optics used in medicine?
- The absolute refractive index of the medium is 1.5. What is the speed of light in this environment?
- The speed of light in a certain medium is 2.5 108m / s. What is the absolute refractive index of the medium?
- The wavelength of violet light in a vacuum is 400 nm. Determine the wavelength of this radiation in topaz if its refractive index is 1.83.
- A ray of light is incident on a glass plate with a refractive index of 1.5. Find the angle of incidence if the angle between the reflected and refracted rays is 900.
- Find the limiting angle of incidence of the beam on the glass-water interface.
- The limiting angle of incidence for a ray exiting the turpentine into the air is 42023 '. Determine the speed of propagation of light in turpentine.