Question : Which of the following is correct for light diverging from a point source?
A. The intensity decreases in proportion for the distance squared.
B. The wavefront is parabolic.
C. The intensity at the wavelingth does depend of the distance.
D. None of these.
Answer:A
Question : Which of the following is correct for light diverging from a point source?
A. The intensity decreases in proportion for the distance squared. B. The wavefront is parabolic. C. The intensity at the wavelingth does depend of the distance. D. None of these.