A company has developed a new material for making optical fibre. The critical angle of this material is much greater than that of glass, Lucite, or any other material
currently being used. Will this new product be successful?
a) No, because the materials currently in use work just fine.
b) There is not enough information here to tell.
Yes, because any materials used to make optical fibres should have a large
critical angle.
No, because any materials used to make optical fibres should have a small
critical angle.

Does anyone have the answers to online physics course plato course physics, semester a v3.0

1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light

Ne way in which elements differ from each other is the structure of the electron cloud in each element's atoms. in an electron cloud, an electron that is farther away from the nucleus has