2. Click and drag the laser to the incident angles shown in table 1 and measure and record the reflected angle. What is the relationship between the angle of incidence and the angle of reflection? Table 1: Angle of Reflection, steps 2 and 3 Angle of Incidence (air) 20⁰ Angle of Reflection (reflecting from glass) 30° 60° 75° Angle of Reflection (reflecting from water) Trial 1 Trial 2 Trial 3 Trial 4 3. Now change the material in the bottom section to water and repeat step 2. Does the angle of

Two flat mirrors are connected to each other such that they make an angle of ψ. A laser enters the system and first reflects off the bottom mirror, then the top mirror. When the beam exits it makes an angle of θ = 106 degrees with respect to the initial beam (see figure). Write an expression for the angle, ψ, between the mirrors.

A ray of light, P moving in air strikes a glass slab as shown below. 01 02 Air on Refractive index=n1=1 Glass Slab Refractive index=n2=1.4 38.3 The measure of angle 01 is Select one: a. 55° b. 65° c. 60°

Question 1: X-ray Diffraction x-ray diffraction is a method used to identify different types of materials. While this is usually quite a complex process, however for a simple cubic structure, as seen below, we can find the distance between neighboring atoms. The below image shows the diffraction of x-rays passing through a cubic structure and illustrates a change in distance of 2d sine Light rays in phase ● a /I\ 100 20. b d sin 8 2d sin 0 Atoms in crystal If the wavelength of the x-ray is equal to an integer multiple of this change in distance, we will get constructive interference: mλ = 2d sine X-rays of wavelength 0.103 nm reflects off a crystal and a second-order maximum is recorded at a Bragg angle of 25.5°. (a) What is the spacing between the scattering planes in this crystal? (b) At what angle will the third-order maximum occur?