The spectacular image called Einstein's Cross is direct evidence ...

[codyclark]

The spectacular image called Einstein's Cross is direct evidence of which of the following phenomenon.
  a. Light traveling faster than c.
  b. Black holes.
  c. Neutron stars.
  d. Gravitational bending of light.

Question 2

The principle of equivalence is primarily concerned with which of the following:
 

a. No experiment can detect the difference between acceleration and a gravitational field.
  b. The equivalence of special and general relativity.
  c. The inertial mass and gravitational mass must be different.
  d. Light pulses must always travel in a straight line.

[lorealeza]

Answer to Question 1

d.
The four outside images represent light bent by an intervening quasar.

Answer to Question 2

a. this is the primary result.

[codyclark]

YES! Correct, THANKS for helping me on my review

[JaynaD87]

Gracias!