Question 7

Sunlight strikes the surface of a lake at an angle of incidence of 37 degrees. If the refractive index of the water is 1.3, at what angle (to the nearest degree) with respect to the vertical would a skin-diver under the water see the sun ?

• A. 27 degrees
• B. 37 degrees
• C. 48 degrees
• D. 10 degrees
• E. 51 degrees
• F. 19 degrees
• G. Not within 1 degree of any of the above

Formula Sheet

Question 6

Question 8

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