Experimental Context: You have access to a ruler-screen (A) for observing spots of light, a T-shape ruler (B) serving as optical benchmark, laser pointers with red and green light (red wavelength is 650 nm), a wooden piece (C) supporting the diffraction grid, a wooden piece (D) for inserting the laser pointer, and wooden piece (E) supporting two "strange mirrors" labeled 1 and 2. These "strange mirrors" are made of a plastic sheet with a reflective layer and produce multiple reflected beams for an incident beam.
Task no. 3:
Place the green laser pointer so that light reaches the screen after reflecting on the "strange mirror" labeled 1.
3.a. Set up the system so that you can observe at least two spots and write down their positions. Do measurements for at least three distances mirror-screen in the range 25-40 cm.
3.b. Draw a diagram of your setup.
3.c. Using the data found determine the specific characteristic of "strange mirror" 1 that enables it to reflect one beam into multiple beams.
Place the green laser pointer so that light reaches the screen after reflecting on the "strange mirror" labeled 2.
3.d. Set up the system so that you can observe at least two spots. Do a measurement just as at point 3.a, for one distance in the range 25-40 cm.
3.e. Using the data found determine the specific characteristic of "strange mirror" 2 that enables it to reflect one beam into multiple beams.