Question 13 (1 point) Save-d A beam of light is unpolarized. This means that: O A) the vibrations are confined to a single plane 0 B} the vibrations are occurring in all possible directions 6) C) the vibrations are occurring in all directions perpendicular to the direction of light propagation O D) the light has reflected from a horizontal surface 0 E) the light has passed through a calcite crystal which causes double refraction Question 14 [1 point) ~/ Saved Thin films of soap sometime display an array of colours. This display is the result of: O A) reflection, diffractionI and interference B} reflection, refraction, and interference O C) reflection, refraction, and polarization 0 D) refraction, interference, and polarization 0 E) reflection, interference. and polarization Question 15 [1 point) J Saved The greater the number of lines on a diffraction grating of a given sizeI O A) the greater the range of wavelengths that can be diffracted O B} the smaller the range of wavelengths that can be diffracted 0 the greater the distance between the bright fringes produced 0 D) the smaller the distance between the bright fringes produced 0 E) the less clear the diffraction pattern will be