The index of refraction for red light in water is 1.331 and for blue light is 1.340 . If a ray of white light enters the water at an angle of incidence of 83.00°, what are the underwater angles of refraction for the blue and red components of the light?
47.79° (blue), 48.22° (red)
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The Earth's circumference was first determined by:
A) Aristotle using lunar eclipses. B) Pythagoras with geometry. C) Hipparchus with stellar parallaxes. D) Erastothenes with solstice shadows. E) Aristarchus with first and third quarter Moon timings.
In a Young's double-slit interference apparatus, by what factor is the distance between adjacent light and dark fringes changed when the separation between slits is tripled?
a. 1/9 c. 3 b. 1 d. 1/3
At the critical fiber length in a short fiber composite, the fiber stress at the center of the fiber length is equal to the fiber stress in a _________fiber composite.
Fill in the blank(s) with the appropriate word(s).
Suppose you lived on the Moon near the center of the face that we see from Earth. At what phase of the Moon would you see sunrise? What phase of Earth would you see at this time?
What will be an ideal response?