A glass plate with an index of refraction is 1.57 is immersed in an oil having a refractive index of 1.40. The surface of the glass is inclined at an angle of 54 with the vertical. A horizontal light ray in the glass strikes the interface.
What is the angle that the refracted ray, in the oil, makes with the horizontal? A) 11
B) 5.6
C) 8.3
D) 14
E) 17
Question 2
The angular magnification of a refracting telescope is 40. When the object and final image are both at infinity, the distance between the eyepiece and the objective is 143.5 cm.
The telescope is used to view a distant radio tower. The real image of the tower, formed by the objective, is 6.0 mm in height. The focal point of the eyepiece is positioned at the real image. What is the angle subtended by the final image of the tower?
A) 0.15 rad
B) 0.17 rad
C) 0.19 rad
D) 0.21 rad
E) 0.23 rad
Refraction; A, normal eye; B, myopia; C, hyperopia.
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