Answer Happy

Use a clean A4 paper as answer sheet. Write your name and student number by hand using blue/black. Use the correct question code. Scan and upload as one pdf document QII. Concept application using calculus derived equations (when applicable) (5.5 x 4: 22 marks) (1) A metal rod is heated from 30°C to 80°C for 10 minutes and cools to 40°C. Find the constant and calculate the cooling time of the metal rod. (2) Apply Snel's law when light travels from air (n = 1.0003) to a crown glass (n = 1.52) where @j = 40° (3) A 5-cm-high object is placed in front of a concave mirror with a radius of curvature of 20 cm. Determine the image height if the object's distance is 20 cm (4) Evaluate the applicable law given the figure below where the refractive index of air is 1,0003, glass prism ni = 1,585. Close estimate the angle of incidence as shown in the figure.