Suppose a ray of light traveling in a material with an index of refraction na reaches an interface with a material having an index of refraction nb.
which of the following statements must be true for total internal reflection to occur?
1.the angle of incidence must be less than the critical angle. na = nb2/the angle of incidence must be equal to the critical angle. na > nb3.the angle of incidence must be greater than the critical angle.
Answers: 3
Physics, 21.06.2019 22:30
The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force
Answers: 1
Physics, 22.06.2019 12:00
In an experiment, how can i change human errors? be specific.
Answers: 1
Physics, 22.06.2019 12:30
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
Answers: 1
Physics, 22.06.2019 16:10
Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)
Answers: 1
Suppose a ray of light traveling in a material with an index of refraction na reaches an interface w...
Mathematics, 07.02.2022 03:30
Social Studies, 07.02.2022 03:30
Mathematics, 07.02.2022 03:40
Mathematics, 07.02.2022 03:40
Biology, 07.02.2022 03:40
Mathematics, 07.02.2022 03:40
History, 07.02.2022 03:40
Mathematics, 07.02.2022 03:40
History, 07.02.2022 03:40