Question

Answer ALL parts: (a) Light travels through a block of glass with refractive index ng = 1.50, and is incident on the external plane surface of the glass at an angle of 50° to the normal. Calculate the critical angle and determine whether total internal reflection (TIR) occurs when the other side of the glass surface is: 1. Air (na = 1) [3 marks] 2. Water (nw = 1.33) [3 marks] (b) A convex mirror (radius of curvature = 68 cm) is located 22 cm from the mirror. 1. The image produced by the mirror [4 marks] 2. Where is the object located? [2 marks] 3. What is the magnification of the mirror? [2 marks] 4. Determine whether the image is upright or inverted. (c) A laser source, with a wavelength λ = 633 nm, is incident on a diffraction grating and the first order maximum produced on a screen positioned 1.5 m behind the grating. Find the difference in position between the zero order maximum and the first order maximum produced on the screen [6 marks].

          Answer ALL parts:
(a) Light travels through a block of glass with refractive index ng = 1.50, and is incident on the external plane surface of the glass at an angle of 50° to the normal. Calculate the critical angle and determine whether total internal reflection (TIR) occurs when the other side of the glass surface is:
1. Air (na = 1) [3 marks]
2. Water (nw = 1.33) [3 marks]

(b) A convex mirror (radius of curvature = 68 cm) is located 22 cm from the mirror.
1. The image produced by the mirror [4 marks]
2. Where is the object located? [2 marks]
3. What is the magnification of the mirror? [2 marks]
4. Determine whether the image is upright or inverted.

(c) A laser source, with a wavelength λ = 633 nm, is incident on a diffraction grating and the first order maximum produced on a screen positioned 1.5 m behind the grating. Find the difference in position between the zero order maximum and the first order maximum produced on the screen [6 marks].

Added by Cristina P.

Question

Please give Ace some feedback