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Question1
A light ray of wavelength 589 nm is incident at an angle θ on the top surface of a block of polystyrene surrounded by air. Find the utmost value of θ for that the refracted ray will undergo total internal reflection at the left vertical face of the block. Do again the calculation for the case in which polystyrene block is immersed in water (c) What happens if the block is immersed in carbon disulfide?
Question2
A square wire loop of size 2a × 2a lies in a xy-plane with the center at the origin and the sides parallel to the x- and y-axes. The wire carries a current I running counterclockwise.
(i) Discover the magnetic field on the z-axis.
(ii) Explain that for z/a << 1 the field becomes that of a magnetic dipole, and find the dipole moment ~m.
What portion of jet power lost to producing sound Powdered steel is placed in a container
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Question: Field and force with three charges? What is the electric field at the location of Q1, due to Q 2 ?
Calculate the dc voltage applied to the circuit.
A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.
What travel time is required for the landing
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A dockworker applies a constant horizontal force of 84.0\({\rm N}\) to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 12.5\({\rm m}\) in a time 4.80\({\rm s}\)
The incident electron loses energy The incident electron emits an x-ray.
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