A light ray enters from medium A to medium Bas shown in the figure. The refractive index of medium B relative to A will be [NCERT Exemplar]
A. greater than unity
B. less than unity
C. equal to unity
D. zero
Answer:A
A light ray enters from medium A to medium Bas shown in the figure. The refractive index of medium B relative to A will be [NCERT Exemplar]
A. greater than unity B. less than unity C. equal to unity D. zero