Question
What is the focal point also known as?
Choose only ONE best answer.
A
End of near zone for a crystal
B
Far field after the focal point
C
Location where the beam diameter is narrowest
Choose only ONE best answer.
A
End of near zone for a crystal
B
Far field after the focal point
C
Location where the beam diameter is narrowest
Answers
GPT 3.5
C
Location where the beam diameter is narrowest
Location where the beam diameter is narrowest