What is the maximum angle a light ray can make with the wall of the core if it is to remain inside the fiber? Express your answer with the appropriate units.

The plum pudding model of the atom states that ?

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s. what is the wavelength?

Aviolently rotating column of air is formed around a region of extremely low air pressure above land. which of these weather conditions is most likely to follow? blizzard cyclone tornado hurricane