A thin layer of MgF_2 (n = 1.38) is coated over glass (n = 1.48). Light that reflects off the top of the coating has a phase shift of __________, while the light that reflects off the bottom of the coating (and the top of the glass) has a phase shift of ___________.
A. 0°, 0°.
B. 0°, 180°.
C. 180°, 0°.
D. 180°, 180°.
Answer:D
A thin layer of MgF_2 (n = 1.38) is coated over glass (n = 1.48). Light that reflects off the top of the coating has a phase shift of __________, while the light that reflects off the bottom of the coating (and the top of the glass) has a phase shift of ___________.
A. 0°, 0°. B. 0°, 180°. C. 180°, 0°. D. 180°, 180°.