_____33. Which of the following is not a metallic material?a. Cobaltb. Nickelc. Alloyd. Wood
_____34. Which of the following magnetic poles can cause attraction?
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_____35. Which of the following can be used in testing the presence of magnetic property of an object?_____36. Which of the following best described the characteristic of the wavelength of a Radiowave?
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_____37. What do you call an object used to separate the different colors of visible spectrum?
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a. Telescopeb. Periscopec. Microscoped. Prism_____38. Which of the following device used microwave in its system?
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_____39. Which of the following isNOTa used of Ultraviolet radiation?_____40. Which of the following isNOTa used of Infrared?
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