A ray of light is incident on a liquid-to-glass interface at an angle of 34.1°. Indices of refraction for the liquid and glass are, respectively, 1.93 and 1.64 . What is the angle of refraction for the ray moving through the glass?
a. 23.9°
b. 28.5°
c. 41.3°
d. 29.0°
e. 40.6°
c
Physics & Space Science
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The most luminous stars in elliptical galaxies are:
A) B stars. B) O stars. C) blue supergiants. D) red giants.
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What is the equivalent resistance between points A and B in the figure when R = 18 ??
a.
48 ?
b.
64 ?
c.
80 ?
d.
96 ?
e.
110 ?
Physics & Space Science
We cannot see a new moon in our sky because
A) it is obscured by Earth's shadow. B) no sunlight is illuminating the Moon. C) a new moon is quite near the Sun in the sky. D) it is above the horizon during the daytime.
Physics & Space Science
Which of the following atoms normally has one covalent bond to it?
a. Br b. O c. C d. P e. Ne
Physics & Space Science