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a) Calculate Brewster's angle for light incident from diamond into air if the glass has an index of 2.409.
b) Unpolarized light is incident on a series of two Polaroid sheets. The intensity of the light emerging from the second sheet is 27.7% of the intensity of the light incident on the first sheet. Discover the angle among the transmission axes of the two sheets.
c) At what distance from a single slit of width 0.155 mm must a screen be placed so that the width of the Fraunhofer central diffraction maximum is 15.5 mm (100 times the slit width), using light of wavelength 476 nm?
An electron beam accelerated through a potential difference of 250V, and passes through a small circular hole, What is the diameter of the hole
A lamp (R = 148 ), an electric heater (R = 23 ), and a fan (R = 48 ) are connected in parallel across a 117 V line. What is the voltage across the fan
question1the pilot of a plane measures an air velocity of 186 kmh south. an observer on ground sees the plane pass
a 950 kg boat is traveling at 110 kmh when its engine is shut off. the magnitude of the frictional force fk between
Consider a particle moving in an elliptical orbit in an inverse square law central force field. What is the eccentricity of the orbit
An 79-kg stuntman jumps from a window of a building situated 33 m above a catching net. Assuming that air resistance exerts a 100-N force on the stuntman as he falls, identify his velocity just before he hits the net.
A tennis ball on Mars, where the acceleration due to gravity is 0.379g and air resistence is negligible, How fast was it moving just after being hit
An automobile having a mass of 1,000 kg is driven into a brick wall in a safety test. The bumper behaves like a spring with constant 5.85 106 N/m, What was the speed of the car before impact
consider a point charge with a charge q located at the origin in an empty space. let the electric potential be zero at
The force of the wind on the sails of a sailboat is 300 N north. The water exerts a force of 210 N east. If the boat (including crew) has a mass of 310 kg, illustrate what are the magnitude and direction of its acceleration?
What is the mass in grams of 1L of helium gas as STP? (Find moles and then convert moles to grams; atomic mass =4.0grams/mol), Why do helium balloons float
A golf ball of mass 0.045 kg is hit off the tee at a speed of 49 m/s. The golf club was in contact with the ball for 4.7 x 10-3 s. Find the magnitude of the impulse imparted to the golf ball
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