Chapter 35, Problem 52E

(a)

To determine

The number angles in the range $0°<\theta <90°$ at which the intensity is $2.00\text{W}/{\text{m}}^{\text{2}}$

(b)

To determine

The four smallest angle in the range $0°<\theta <90°$ for which the intensity is $2.00\text{W}/{\text{m}}^{\text{2}}$.

(c)

To determine

The intensity at a point on the circle at an angle of $4.65°$ from the centerline.