Multiple Choice
Upon reflection,light undergoes a 180° phase change:
A) always.
B) if the incident medium has the higher index of refraction.
C) if the incident medium has the lower index of refraction.
D) whenever the incident angle is less than the critical angle.
Correct Answer:

Verified
Correct Answer:
Verified
Q58: In a Young's experiment,the paths from the
Q59: The intensity of unpolarized light passing through
Q60: That all points on a wave front
Q61: In a Young's double-slit interference apparatus,the distance
Q62: A light source simultaneously emits light of
Q64: Two closely spaced parallel glass plates are
Q65: Laser light sent through a double slit
Q66: A diffraction grating with 11 800 lines/cm
Q67: Unpolarized light of intensity I<sub>0</sub> passes through
Q68: Diffraction grating №1 has half the lines/cm