Multiple Choice
What experimental evidence do physicists have for the direct transformation of energy into matter?
A) increase in the force upon a body when it is accelerated upward (e.g., in an elevator)
B) conversion of gamma-ray photons into electrons and antielectrons (i.e., positrons)
C) blueshift of light because of the motion of its source
D) relativistic increase in mass of an object when it is moving very rapidly
Correct Answer:

Verified
Correct Answer:
Verified
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