A thin film of polystyrene is used as an antireflective coating for fabulite (known as the substrate). The index of refraction of the polystyrene is 1.49, and the index of refraction of the fabulite is 2.409.
Required:
What is the minimum thickness of film required? Assume that the wavelength of the light in air is 470 nanometers. Express your answer in nanometers.
Answers: 1
Physics, 21.06.2019 17:30
The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?
Answers: 1
Physics, 22.06.2019 09:50
Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors
Answers: 1
A thin film of polystyrene is used as an antireflective coating for fabulite (known as the substrate...
Mathematics, 19.10.2019 12:30
Mathematics, 19.10.2019 12:30
Social Studies, 19.10.2019 12:30
Health, 19.10.2019 12:30
Social Studies, 19.10.2019 12:30
Health, 19.10.2019 12:30
English, 19.10.2019 12:30
Mathematics, 19.10.2019 12:30
Mathematics, 19.10.2019 12:30
Mathematics, 19.10.2019 12:30
Mathematics, 19.10.2019 12:30