Gravitational lensing
a. occurs when light passes near a massive object and is deflected by the object's gravitational field.
b. can be used to determine the luminosity of a galaxy.
c. occurs when the mass of a galaxy is greater than expected from the luminosity of the galaxy.
d. occurs when the mass of a galaxy is less than expected from the luminosity of the galaxy.
e. can be used to determine the recessional velocity of a galaxy.
A
You might also like to view...
A wire of diameter 0.20 mm stretches by 0.20% when a 6.28-N force is applied to it. What is Young's modulus for this wire?
A) 2.5 × 1010 Pa B) 1.0 × 1011 Pa C) 2.5 × 1012 Pa D) 1.0 ×1012 Pa
What is the probability of rolling either a 7 or 11 on a single roll of a pair of dice?
a. 1/6 b. 2/9 c. 3/8 d. 1/3 e. 1/2
The basic force that binds materials together is:
a. gravitational force. b. nuclear force. c. buoyant force. d. inertial force. e. electrical attraction.
The largest elliptical galaxies are likely the product of galactic mergers. The largest elliptical galaxies are likely the product of galactic mergers.
Indicate whether the statement is true false.