Suppose a light ray traveling in air passes sideways through a glass of water and comes out the other side. How many times will the light ray refract?
Question 15 options:
four times; through glass, water, glass, and air
one time; through the water
three times; through glass, water, and glass again
two times; through the glass and the water
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6 times air to glass, glass to water, water to glass, glass to air
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Four times through glass, water , glass and air
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