Answer:
0.3257 seconds
39.67 m/s
Explanation:
Speed = 263 km/h
Converting to m/s


Distance to travel = 23.8 m
Time = Distance / Speed

The time taken to go from one end of the court to the other is 0.3257 seconds
Time = 0.6 s
Speed = Distance / Time

The speed of the tennis ball is 39.67 m/s
Not sure I understand can you explain more
Answer:
Try B or C if I'm wrong sorry
Explanation:
Due to the shape of the lens , parallel rays will be deviated