Problem 15P

Find the angle θmax at which the maximum radiation is emitted, in Ex. 11.3 (Fig. 11.13). Show that for ultrarelativistic speeds (v close to c), 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 .

Figure 11.13

Solution 15P

Step 1 of 3:

In this question, we need to find the angle at which the maximum radiation is emitted and show that for ultrarelativistic speed is

We also need to find the intensity of the radiation in this maximal direction, we need to obtain the answer in terms of

Considering figure given