state gov UP Police Assistant Operator (Radio Cadre) Mock Test Physics Electromagnetic Waves Polarization by Reflection
The refractive index of glass with respect to air is 1.5. The speed of light in glass will be
1
2 × 108 m / sec
2
3 × 108 m / sec
3
1.33 × 108 m / sec
4
4.5 × 108 m / sec