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The __________ is drawn such that it forms a 90-degree angle with the boundary between the two media at the point where the light ray refracts. 6) A __________ lens is only able to produce a virtual type of image. 7) If an object is placed 15 cm in front...
Calculate the frequency of an electromagnetic wave that has the speed of 3.00 x 10 8 m/s and a wavelength of 2 mm. (1 mm =
What is the frequency of a wave whose wavelength is 4.10 x 10 -12 m?