MHT CET202124 Sep 2021Evening ShiftPhysicsRay OpticsActual
White light consists of wavelengths range from 480 ~nm to 672 ~nm . What will be the wavelength range when white light is passed through glass of refractive index 1.6?
Options
- A420 ~nm -672 ~nm
- B300 ~nm -480 ~nm
- C300 ~nm -420 ~nm
- D300 ~nm -672 ~nm
Correct answer
C. 300 ~nm -420 ~nm
Step-by-step solution
If wavelengths in air are 480 ~nm and 672 ~nm , then wavelengths in a medium of refractive index 1.6 will be 480 1.6 =300 ~nm and 672 1.6 =420 ~nm