Reflecting telescopes suffer from chromatic aberration because the light must pass through the glass
a. True
b. False
Indicate whether the statement is true or false
False
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Two spaceships are approaching one another, each at a speed of 0.31c relative to a stationary observer on Earth. What speed, in terms of the speed of light, does an observer on one spaceship record for the other approaching spaceship?
What will be an ideal response?
In a transition from one vibrational state to another, a molecule emits a photon of wavelength 5.56 µm
What is the energy difference between these two states? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J) A) 13.6 MeV B) 13.6 eV C) 0.223 eV D) 0.223 MeV E) 2.23 MeV
How would you include contact resistance between the two materials Derive the appropriate difference equations.
GIVEN
Interface between two materials with different thermal conductivities and contact resistance at the
interface
FIND
(a) The appropriate difference equations
SKETCH
What do we mean by the frost line when we discuss the formation of planets in the solar nebula?
A) It is another way of stating the temperature at which water freezes into ice. B) It marks the special distance from the Sun at which hydrogen compounds become abundant; closer to the Sun, there are no hydrogen compounds. C) It is a circle at a particular distance from the Sun, beyond which the temperature was low enough for ices to condense. D) It is the altitude in a planet's atmosphere at which snow can form.