Unit: waves
Year: 1990 Question#: 40
Question: The diagram at the right shows a ray of light, R , entering glass from the air. Which path is the ray most likely to follow in the glass?
(1 ) A
(2 ) B
(3 ) C
(4 ) D
What is this question really asking?
Explanation by:Joe W
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Answer 1
A
INCORRECT
Glass is denser than air, so it refracts inward, not outward. return to top
Answer 2
B
INCORRECT
Glass is not the same density as air, so it will refract. return to top
Answer 3
C
CORRECT
Glass is denser than air, so it will refract inward, but not all the way to the normal. return to top
Answer 4
D
INCORRECT
The ray won't refract that much, not all the way to the normal. return to top
What's this question really asking?
How will the ray refract when entering a denser medium? return to top
