Q31. The diagram shows the passage of a ray of light from air (n = 1.00) into a substance X. The index of refraction of X is. A. 0.53 B. 0.82 C. 1.2 D. 2.9 E. 1.7 F. 1.9 G. none of the above 50° 40° 700 X * 70° 20° Q32. The critical angle for the air-water interface is 48.8°. Which of the following is correct? A. Light with incidence angle less than 48.8° will be totally reflected when it goes from air to water B. Light with incidence angle less than 48.8° will be totally reflected when it goes from water to air C. Light with incidence angle greater than 48.8° will be totally reflected when it goes from air to water D. Light with incidence angle greater than 48.8° will be totally reflected when it goes from water to air
Q31. The diagram shows the passage of a ray of light from air (n = 1.00) into a substance X. The index of refraction of X is. A. 0.53 B. 0.82 C. 1.2 D. 2.9 E. 1.7 F. 1.9 G. none of the above 50° 40° 700 X * 70° 20° Q32. The critical angle for the air-water interface is 48.8°. Which of the following is correct? A. Light with incidence angle less than 48.8° will be totally reflected when it goes from air to water B. Light with incidence angle less than 48.8° will be totally reflected when it goes from water to air C. Light with incidence angle greater than 48.8° will be totally reflected when it goes from air to water D. Light with incidence angle greater than 48.8° will be totally reflected when it goes from water to air
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Transcribed Image Text:Q31. The diagram shows the passage of a ray of light from air (n = 1.00)
into a substance X. The index of refraction of X is
A. 0.53
B. 0.82
C. 1.2
D. 2.9
E. 1.7
F. 1.9
G. none of the above
50°
40%
70°
20%
3
Q32. The critical angle for the air-water interface is 48.8°. Which of the following is correct?
A. Light with incidence angle less than 48.8° will be totally reflected when it goes from air to
water
B. Light with incidence angle less than 48.8° will be totally reflected when it goes from water
to air
C. Light with incidence angle greater than 48.8° will be totally reflected when it goes from air
to water
D. Light with incidence angle greater than 48.8° will be totally reflected when it goes from
water to air
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