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A layer of oil of thickness 200nm floats on top of a layer of water of thickness 400nm resting on a flat metallic mirror. The index of refraction of oil is 1.24 and that of the water is 1.33. A beam of light is normally incident on these layers. What must be the wavelength of the beam if the light reflected by the top surface of oil is to interfere destructively with the light reflected by the mirror?
suppose that a projectile which is subject to a linear resistive force is thrown down with a speed of Vyo, Describe and explain how the velocity varies with time, and make a plot of Vy against t
An golf ball sits on the optical axis of a spherical mirror at a distance of 17 cm. A virtual image is formed a distance of 6 cm away from the mirror. What is the mirror's focal length (include sign if negative)
The text of the question is as follows "Anengine flywheel is rotating at 25.0 Rads per second. calculate the number of revolutions made by the fly wheel in stopping
A very long coaxial cable consists of a solid cylindrical inner conductor of radius 3.6 mm, surrounded by an outer cylindrical conductor with inner radius 7 mm, and outer radius 9.7 mm. The region between the two conductors is filled with a waxlik..
in a television set electrons are accelerated from rest through a potential difference of 24 kv. the electrons then
Compute the components of the electric field at the point P shown in figure E2.9 with the y-direction upward and the z-direction out of the page. Suppose that the charge Q is uniformly distributed over the wire.
Consider a bright star in our night sky. Assume its distance from Earth is 89.4 light-years (ly) and its power output is 4.00 multiply.gif 1028W, Find the intensity of the starlight at the Earth
Altitude of 575 meter with zero initial velocity; 8.0 second she falls freely; rate of descent at 15m/s^2 until her rate of descent reaches 5.0 m/s. Find her average velocity for the entire trip
a typical co2 laser produces infrared radiation in the range of 9000-11000 nm wavelength in pulses of 5 j and 500 ns
At a certain location, the Earth's magnetic field has a magnitude of 5.8×10?5T, Find the magnitude of the magnetic flux through the top of a desk at this location that measures 140cm by 90
What mass can it support in water before sinking. Two concentric spherical shells with uniformly distributed masses M1 = kg and M2 = kg are situated as shown . Find out the magnitude Find the magnitude of the net gravitational force on a particle ..
A -6.00 µC charge is moving with a speed of 8.20 104 m/s parallel to a very long, straight wire, Find the magnitude and direction of the force on the charge.
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