Chapter 30, Problem 38P

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9. Light of wavelength 442 nm is sent through a single slit with a width of 884 nm. At what angle does the first dark fringe occur? a. 30.0° b. 45.0° C. 60.0° d. 90.0° 10. Light travels through a single-slit and forms an interference pattern. The spacing of the dark fringes on one side of the pattern is 1.44 cm. What is the width of the central maximum? a. 0.720 cm 1.44 cm b. C. 2.88 cm d. 4.32 cm

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d. when the index of refraction of medium A is equal to the index of refraction of medium B 7. What is the term for the bending of a wave front as it passes an obstacle? a. interference b. reflection C. d. diffraction refraction 8. A ray of light travels from air into a soap film on a layer of glass, as shown right. Which statement about ray 1 is true? a. There is no inversion at either surface. b. There is an inversion the surface between air and soap, but not soap and glass. C. There is no inversion at the surface between air and soap, incident light ray 1 ray 2 ray 3 but there is one at the surface between soap and glass. d. There is an inversion at both surfaces. air = nair 1.00 soap film nfilm = 1.35 glass = nglass 1.50

A circular wire with radius 0.4 meters in on x-y plane. There is a constant Magnetic field with 14T strengthtowards z-axis. Find the magnitude of the electromotive force and the direction of the current for a) B decreasesto 10T in 5 seconds. B) B is rotated by 45 degrees and the area doubles in 4 seconds.

Write the expression for the magnetic flux inside a region om x-z plane at y=0 bounded by z=3x z=0 x=5 x=7due to a magnetic field B = f(x,y,z) i +g(x,y,z) j + h(x,y,z) k

Explain mutual inductance of two loops facing one another and compare with one loop inside the other.

Two very long wires carry each 3 amps current in the same direction along the z-axis (outward). First is at x=0y=0 current is upward. Second at x=0 y=3 current is also upward. Find the net magnetic field at x=4 y=3.

Find the integral expression for the magnetic field at x=5 y=6 due to a wire on the x axis with length 5 meters onend at x=0 and the other at x=5. Don’t take the integral