According to a postulate of Einstein, which of the following describes the nature of the laws of physics as one observes processes taking place in various inertial frames of reference?
a. Laws are the same only in inertial frames moving at near speed of light.
b. Laws are the same in all inertial frames.
c. Laws are the same only in inertial frames with zero velocity.
d. Laws are the same only in inertial frames moving at low velocities.
Question 2
Einstein's theory of relativity is based in part on which one of the following postulates?
a. Speed of light in a vacuum is same for all observers regardless of source velocity.
b. Energy is conserved only in elastic collisions.
c. Space and time are absolutes.
d. Mass and energy are equivalent.
