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Practice exam 3-2

# Practice exam 3-2 - Version 001 PracticeExam3 shih(56310...

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Version 001 – PracticeExam3 – shih – (56310) 1 This print-out should have 12 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. Light Refraction 001 10.0 points X Y When light travels from medium “X” to medium “Y” as shown in the figure: 1. both the speed and the frequency de- crease 2. both the speed and the wavelength in- crease 3. both the speed and the frequency in- crease 4. both the wavelength and the frequency are unchanged 5. both the speed and the wavelength de- crease Tipler PSE5 31 42 002 10.0 points A glass surface of index 1 . 5 has a layer of water of index 1 . 33 on it. Light in the glass is incident on the glass-water interface. Find the critical angle for total internal reflection. 1. 62 . 4573 2. 76 . 5166 3. 40 . 9715 4. 51 . 3412 5. 31 . 0213 6. 90 Tipler PSE5 32 03 003 10.0 points Which of the following is true? 1. A concave mirror always forms a virtual image. 2. A concave mirror never forms an enlarged real image of an object.

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