The most important reason an object is observed to be shorter in a frame where it is moving than in a frame where it is at rest is that
A. The force of motion strongly compresses an object that is moving at relativistic speeds.
B. “Simultaneity” is not a frame-independent concept.
C. The measuring sticks used by the moving observer are Lorentz-contracted.
D. The clocks used by the moving observer run slower.
B. “Simultaneity” is not a frame-independent concept.
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What information about orbital inclination can we get from visual binaries, spectroscopic binaries, and eclipsing binaries?
What will be an ideal response?
Light consisting of a mixture of red and blue light enters a 40°, 70°, 70° prism along a line parallel to the side opposite the 40° vertex. The index of refraction of the prism material for blue light is 1.530, and for red light it is 1.525
What is the angle between the two emerging beams of light? A) 0.5° B) 0.9° C) 0.1° D) 0.3° E) 0.7°
The Greenwich meridian is also known as the
a. zero, or prime, meridian. b. reference circle. c. east–west coordinate parallel. d. hour meridian.
An object 3.4 mm tall is placed 25 cm from the vertex of a convex spherical mirror. The radius of curvature of the mirror has a magnitude of 52 cm
(a) How far is the image from the vertex of the mirror? (b) What is the height of the image? What will be an ideal response?