- AIts component colours
- BDifferent shapes
- CDifferent sizes
- DDifferent intensities
Answer: A) Its component colours Explanation: When a beam of white light or composite light is refracted through any transparent media such as glass or water, it is split into its component colours. This phenomenon is called as ‘dispersion of light’.
Answer: A) Elastic scattering Explanation: When the energy of the incident and scattered beams of light is the same, it is called elastic scattering.
Colloid is microscopically small substance that is equally dispersed throughout the another material.example milk,ice cream
Answer: B) Mie scattering
Explanation: Mie scattering is caused by pollen, dust, smoke, water droplets, and other particles in the lower portion of the atmosphere.
Answer: C) Tyndall scattering Explanation: The scattering of light rays by the colloidal particles in the colloidal solution is called Tyndall scattering or Tyndall effect.
Answer: B) Concave lens Explanation: A concave lens is thinner at the center than at the edges.
Answer: A) Diverging lens Explanation: A concave lens is also called a diverging lens because it diverges a beam of light.
Answer: D) M = ho/hi
Explanation: The magnification of a lens can be calculated using the formula M = ho/hi, where ho is the height of the object and hi is the height of the image.
Answer: C) Cylindrical lens Explanation: A cylindrical lens is used to correct astigmatism, which is an uneven curvature of the cornea that causes distorted vision.
According to Cartesian sign convention the object always placed at the left side of the lens