Part 2) An additional piece is added to the top obstacle. So it now makes a right angle with two pieces each length d - 21.9 cm as shown in Figure 2. D Point light source D Figure 2. An extra section of length d is attached to the top of the slit perpendicular to the wall. Where is the shadow located now? Shadow with positive height 0 0.438 m Your last answer was interpreted as follows: 0 Your last answer was interpreted as follows: 0.438 Shadow with negative height: -0.268 -0.706 m Your last answer was interpreted as follows -0.268 Your last answer was interpreted as follows: 0.706 Part 3) An additional light is now added (the additional obstacle is removed), a distance a - 13.4 cm directly above the first light. Which parts of the screen are now in shadow (i.e. receive no light from either light source)?Part 3) An additional light is now added (the additional obstacle is removed), a distance a - 13.4 cm directly above the first light. Which parts of the screen are now in shadow (i.e. receive no light from either light source)? Additional point light source D D Point light source d Figure 3. An identical point source is placed a distance a above the first. Shadow with positive height: 0.304 m Your last answer was interpreted as follows: 0 Your last answer was interpreted as follows: 0.304 Shadow with negative height: mQuestion: As shown in the figure a point light source produces light, a horizontal distance D - 1.05 m away are two obstacles both with height d - 21.9 cm, separated by a distance a = 13.4 cm. ] - 1.05 m away from the obstacles is a screen Note the alignment, the light and bottom of the top obstacle are at the same height which we are calling y = 0. Any height higher than this is positive and any height lower is negative. Point light source D D Figure 1. A point source is a distance _ away from a partitioned wall. There is a slit of width a in the wall with each adjacent section having length d. Beyond this middle wall a parallel observation screen lies a distance D) away. The centre of the slit in the middle wall sits at y = 0 and the point source is aligned with the top of the slit y _ 0. Part 1) The obstacles and gap are all large enough that we can use ray optics (i.e. neglect diffraction) . Which parts of the screen are in shadow? Shadow with positive height O 0.438 m Your last answer was interpreted as follows 0 Your last answer was interpreted as follows: 0.438 Shadow with negative height -0 268 -0.706 m Your last answer was interpreted as follows: -0.268 Your last answer was interpreted as follows: -0.706