PhyIIHW9 - 13 . 8 km below. The index oF reFraction where...

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hopkins (tlh982) – HW09 – criss – (4908) 1 This print-out should have 6 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 10.0 points Two light pulses are emitted simultaneously From a source. The pulses take parallel paths to a detector 7 . 05 m away, but one moves through air and the other through a block oF ice. Determine the di±erence in the pulses’ times oF arrival at the detector. (Assume the index oF reFraction oF ice is 1 . 309.) Answer in units oF ns. 002 10.0 points Light is incident on a slab oF transparent ma- terial at an angle 30 , as shown below. The slab has a thickness oF 8 . 7 cm. The light exits the slab a perpendicular distance 2 . 6 cm From the point oF entry on the back side oF the slab. I 1 I 2 8 . 7 cm I 3 2 . 6 cm θ 2 30 θ 3 n air = 1 n slab What is the index oF reFraction oF the slab? 003 (part 1 oF 2) 10.0 points Given: The speed oF light is 2 . 99792 × 10 8 m / s. A light ray enters the atmosphere oF a planet where it descends to the surFace
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Unformatted text preview: 13 . 8 km below. The index oF reFraction where the light enters the atmosphere is 1 . 12 and it increases uniFormly to the surFace where it has a value oF 1 . 43. How long does it take the ray to traverse this path? Answer in units oF s. 004 (part 2 oF 2) 10.0 points How long would it take to cover the same distance in a vacuum? Answer in units oF s. 005 10.0 points An object is placed 9 cm to the leFt oF a diverging lens oF Focal length-5 . 3 cm. A converging lens oF Focal length 11 cm is placed a distance d to the right oF the diverging lens. ²ind the distance d that places the fnal image at infnity. Answer in units oF cm. 006 10.0 points Calculate the minimum thickness oF a soap bubble flm (index oF reFraction 1 . 32) that results in constructive interFerence in the re-³ected light iF the flm is illuminated with light whose wavelength in Free space is 483 nm. An-swer in units oF nm....
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This note was uploaded on 09/03/2009 for the course PHY PHY 2049 taught by Professor Robertr.criss during the Fall '08 term at University of South Florida - Tampa.

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