A beam of polarized light of intensity I0 passes through a sheet of ideal polarizing material. The polarization axis of the beam and the transmission axis of the sheet differ by 38°. What is the intensity of the emerging light?
a. 0.79I0
b. 0.62I0
c. 0.91I0
d. 0.90I0
e. 0.96I0
b
You might also like to view...
A(n) ______ website organizes webpages into categories and subcategories.
A. hierarchical B. webbed C. linear D. structured
The twinkling of the stars is a result of atmospheric
A) reflection. B) refraction. C) scattering. D) dispersion. E) aberrations.
A particle moving with a constant acceleration has a velocity of 20 cm/s when its position is x = 10 cm. Its position 7.0 s later is x = ?30 cm. What is the acceleration of the particle?
A. ?7.3 cm/s2 B. ?8.9 cm/s2 C. ?11 cm/s2 D. ?15 cm/s2 E. ?13 cm/s2
A coal-fired plant generates 600 MW of electric power. The plant uses 4.8 × 106 kg of coal each day. The heat produced by the combustion of coal is 3.3 × 107 J/kg
The steam that drives the turbines is at a temperature of 300°C, and the exhaust water is at 37°C. (a) What is the overall efficiency of the plant for generating electric power? (b) What is the maximum efficiency that this plant could possibly have using the same temperature extremes that it presently uses? (c) How much thermal energy is exhausted each day by this plant?