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A layer of oil, with a refractive index of 1.40798, 0.92562 mm thick, floats on water.
a) Light of vacuum wavelength 632.800 nm, emitted with a stabilized He-Ne laser, is reflected at normal incidence by the oil. How many wavelengths are contained in the light wave passing back and forth during the oil?
b) Does the light reflected from the two surfaces of the oil interfere destructively or constructively?
Constructive interference structure interference
A man ties one end of a strong rope 7.64 m long to the bumper of his truck, 0.505 m from the ground, and the other end to a vertical tree trunk at a height of 3.90 m. Compute the magnitude of the torque on the tree
a cannon fires a cannonball from the top of a wall at a speed of 29.42 ms and an angle of 13.75 degrees from the
Three identical resistors are connected in series. When acertain potential difference is applied across the combination, What power would be dissipated if the three resistors were connected in parallel across the samepotential difference
wave crest pass the bow of anchored boat every 3 seconds. The distance between two crest is 6.6 m. what type of wave is it (longitudinal or transverse) and how fast is it traveling
a person notices a mild electric shock if the current along a path through the thumb and the index finger exceeds 80.0
find out the z-component of the block's momentum after the kick.
A 395 turn circular loop coil 16 cm in diameter is initially aligned so that the axis is perpendicular to the earth's magnetic field. What is the magnitude of the earth's magnetic filed at this location
a golf ball rolls off a horizontal cliff with an initial speed of 13.6 ms. the ball falls a vertical distance of 12.0 m
a frictionless stick of mass m and length l lies at rest on a frictionless horizontal table. a mass km where k is some
q1. a flywheel having constant angular acceleration requires 4.60 to rotate through 170. its angular velocity at the
A square loop with 80 tight turns and sides 15 cm is made with copper wire of diameter 1.2 mm. determine the current induced in the loop
A ball rolls off a table and falls 0.81 m to the floor, landing with a speed of 5.5 m/s. What initial speed must the ball have if it is to land with a speed of 6.3 m/s
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