The Tyndall effect is the scattering of light as a light beam passes through a colloid. The individual suspension particles scatter and reflect light, making the beam visible. This effect is exhibited by colloids and fine suspensions, but not by true solutions.
The scattering of a beam of light by colloidal particles is termed as:
Asked in UPSC Geoscientist 2020 · Topic: Optics (Prisms and Dispersion)
More Physics questions
- Which one of the following waves has the longest wavelength?
- Which one of the following statements is true about the appearance of colour of the Sun in the sky?
- The refractive index of a prism made of flint glass is
- Among the following visible rays, which one is the shortest wavelength in microns?
- During dispersion of white light by the glass prism, which of the following light of the spectrum bends the most ?
- During the dispersion of white light by a glass prism, which of the following colors in the spectrum deviates the most?
- A secondary rainbow is always seen with a rainbow. (a) A secondary rainbow appears above or outside a primary rainbow. (b) The secondary rainbow is always fainter than the corresponding primary rainbow. (c) The orders of colours of primary rainbow and secondary rainbow are opposite. (d) A secondary rainbow is only a refraction of a primary rainbow. The correct statement(s) among the above is/are
- Ultraviolet rays cannot pass through _______ .
