Activity 2: Problem Solving Direction: Analyze the following problems and write your solutions neatly. 1. An EM waves has a frequency of . What is its wavelength? 2. What is the frequency of a microwave whose wavelength is 1.50 cm? 3. What is the wavelength of a radar signal? What is the frequency of an X-ray with wavelength 0.12 nm. 4. The speed of light in ice is . What is the index of refraction of ice? 5. Determine the speed of light in the following materials given its index of refraction a. Ethyl alcohol (n= 1.33) b. Diamond (n= 2.42) C. Crown glass (n=1.52) Application/Reflection: How does electromagnetic radiation affect our lives?Activity 2: Problem Solving Direction: Analyze the following problems and write your solutions neatly. 1. A flashlight beam strikes the surface of a pane of glass (n=1.56) at a 67 angle to the normal. What is the angle of refraction? 2. A light beam coming from underwater spotlight exists the water at an angle of 56-At what angle of incidence did it hit the air-water interface from below the surface? 3. (a) What is the minimum index of refraction for a glass or plastic prism to be used in a binoculars so that total internal reflection occurs at 45 ? (b) Will binoculars work if their prim (n=1.58) are immersed in water? (c) What minimum n is needed if the prisms are immersed in water? Application/Reflection: 1. Why do diamonds sparkle? 2. How rainbow is formed? Explain with diagram