NDA2016General AbilityGeneral ScienceActual
When a ray of light enters a glass slab, then
Options
- Aonly the frequency changes
- Bfrequency and velocity change
- Cfrequency does not change
- Dfrequency and wavelength change
Correct answer
C. frequency does not change
Step-by-step solution
As the light enters from rarer medium to the denser medium the speed of light decreases but the frequency remains the same.