Question 4 (1 point) Can destructive interference occur between two incoherent light sources? O Yes Yes, as long as the light sources are polarized O NoQuestion 6 (1 point} In an arrangement for Young's double slit experiment, the separation between the slits is d = 1 mm. It is found that 8 bands of the double slit interference pattern can occupy the central maximum of the single slit diffraction pattern produced by one of the slits used alone (while the other is blocked). What is the width of each slit (a)? Recall that the angular fringe spacing for double slits is given by A/d and the angular width of the central maximum for single slits is given by 2A/a. l/H\\l 0.3mm Question 7 (1 point} Light of wavelength l6-77x10"2} nm falls on two slits and produces an interference pattern in which the fourth-order fringe is (4.8600x10A1) mm from the central fringe on a screen (1.4500x10AOJ m away. What is the separation of the two slits - in micrometres to 3 sf? Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: ' x10 Answer Question 8 (1 point} A (3.76x10n3l-linefcm grating produces a third-order fringe at a l2.8880x10"'1) angle. What wavelength of light is being used? Give an answer in nm to 3 sf. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Question 5 (1 point] A single slit diffraction pattern is obtained on a screen using yellow light. If the yellow light is replaced by blue light without making any other changes in the experimental set up, what will happen to the diffraction bands? ( '; Bands will become broader and farther apart \\H/ Bands will become broader and crowded together L} Bands will become narrower and farther apart \\U/ Bands will become narrower and crowded together RH} Bands will disappear