SarkariPYQ

SSC CHSL 2022 PYQ — Question 34

SSC CHSL - 24 May 2022 - Shift 3 • General Awareness • Q34

Back to paper

 

On 21 st January 2022, three states observed their 50th Statehood Day, which of the following is NOT one amongst these three?
 

In optics, the refractive index of a substance is described by the formula n = c/v, where 'c' is:

Show answer & explanation

Correct answer: D

Explanation

The correct answer is option 4 i.e. the speed of light in vacuum.

  • Refractive Index refers to a value that has common usage in optical science.
  • Refractive Index has no unit.
  • Refractive Index indicates a material’s ability to refract light. 
  • Refraction takes place when light or any other radiation changes medium.
  • The refractive index of a substance is described by the formula n = c/v, where c= the speed of the light in the vacuum and v= speed of light in the medium.