Answer to Question #51685 in Optics for samson

Question #51685
11 Where is the image located when an object is 60 cm from a convex mirror with a focal length of 20 cm?
a.15 cm behind
b. 30 cm behind
c. 60 cm behind
d. 15 cm in front
12 If the sun is 150 million km away from the earth, how long does it take sunlight to reach the earth
a. 0.5 s
b. 1500 s
c. 45 s
d. 500 s
13 The critical angle for total internal reflection at an air-water interface is approximately 48 degrees. In which of the following situations will total internal reflection occur?
a. light incident in water at 40 dgrees
b. light incident in water at 55 dgrees
c. light incident in air at 40 dgrees
d. light incident in air at 55 dgrees
14 How many diopters are there for for a converging lens with a focal length of 0.4m?
a. −2.5
b. −0.4
c. +0.4
d. +2.5
1
Expert's answer
2015-04-03T01:44:35-0400
The answer to the question is available in the PDF file https://www.assignmentexpert.com/https://www.assignmentexpert.com/homework-answers/physics-answer-51685.pdf

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