Every source of energy has its drawbacks and benefits, and a transition to new forms of energy will involve many different technologies, along with improvements in efficiency and changes in infrastructure. True
False

Which statement is correct? the speed of the light ray is the same in air and medium a. the speed of the light ray is the same in air and medium b. medium a and medium b have different densities because light refracts at different angles. medium a and medium b have the same density because the light ray strikes both at the same angle.