Find the angle max at which the maximum radiation is emitted, in Ex. 11.3 (see Fig. l l.14). Show that for ultrarelativistic speeds (v close

Find the angle θmax at which the maximum radiation is emitted, in Ex. 11.3 (see Fig. l l.14). Show that for ultrarelativistic speeds (v close to c), θ max ?? ??(1 ?? β)/2. What is the intensity of the radiation in this maximal direction (in the ultrarelativistic case), in proportion to the same quantity for a particle instantaneously at rest? Give your answer in terms of γ.

max