A ray of light traveling in air strikes the surface of a certain plastic slab at 63.0° with respect to the normal in air. It travels in the plastic slab at a 30.6° angle with respect to the normal. Find the critical angle for the plastic in air
What will be an ideal response?
Answer: 34.8°
Physics & Space Science
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From Earth, the view of the Milky Way is a thin band of stars across the night sky. The part of the Milky Way galaxy that is described here is the
A) bulge. B) spiral arm. C) disk. D) halo. E) globular cluster.
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Which of the following best describes nuclear forces?
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2.50 moles of a monatomic ideal gas expand adiabatically from an initial temperature of 300 K and an initial volume of 80.0 L to a final volume of 150 L. What is the final temperature of the gas?
A) 840 K B) 563 K C) 426 K D) 287 K E) 197 K
Physics & Space Science
When visible light is incident upon clear glass, atoms in the glass
A) are forced into vibration. B) resonate. C) convert the light energy into internal energy.
Physics & Space Science