A light beam is incident on a piece of zircon n 1923 at
A light beam is incident on a piece of zircon (n = 1.923) at the Brewster's angle.
(a) Find the value of Brewster's angle.
°
(b) Find the angle of refraction for the transmitted ray.
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compute the money saved in one month by using CFL (compact fluorescent light) bulb (18 W) instead of using an incandescent lamp (60 W) if the cost of electricity is $.12 per kWh. Assume lights are used for 10 hours a day. (30 days in the month)
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If the emission, factor of producing electric power by PV cells is 100 g of CO2 per kWh, by wind power is 15 g of CO2 per kWh, and by coal is 1000 g of CO2 per kWh, then find the ratio of CO2 emission when a) 15% of power comes from wind farms
A light beam is incident on a piece of zircon (n = 1.923) at the Brewster's angle. determine the value of Brewster's angle
An iron core of cross-sectional area 200 square mm and length 320mm is evenly wound with a coil of 100 turns. When a current of 0.35A flows in the coil, a magnetic flux density of 0.12T is set up in the iron core.
A four-pole armature is to generate an average e.m.f. of 2.0V per conducter, the flux per pole being 25mWb. Calculate the speed, in r/min, at which the armature must rotate.
Assume the distance between the protons in the H2 molecule is 7.50 multiply.gif 10-11 m. Find the energy of the second rotational state, with J = 2
One of the first prison systems was called the Pennsylvania System. The ideology of this system was used in the Eastern State Penitentiary in the early 1800s.
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