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PS1_2005

# PS1_2005 - OPTI 201R Fall 2005 I.1 Problem Set I Due The...

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OPTI 201R, Fall 2005 Problem Set I Due August 29, 2005 08/19/05 1 of 2 I.1 The human eye can see 550 nm radiation (light). What is the energy (electron volts) of the light at that wavelength? Determine the frequency and the period of this light. I.2 A non-magnetic media has a dielectic constant of 9. What is the index of refraction? I.3 What is the speed of light in the following media? a) water (n = 1.333) b) glass (n = 1.5) c) ZnSe (n = 3.5) I.4 If a beam of light is incident at 25 degrees on a flat piece of glass (n = 1.5), what is the angle of refraction and angle of reflection at the top surface relative to its normal? What is the angle of refraction and reflection from the bottom surface on the air side relative to its normal? I.5 How long does it take light from the sun to reach earth? Assume the earth's distance from the sun to be 1.50x10 8 km. I.6 A ray of light in air is incident on the polished surface of a block of glass at an angle of 10°.

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