Physics Ray Optics Level: University
Wave opticsDiffraction occurs for all types of waves including sound waves high frequency sound from a distant source with a wavelength 9.00 cm passes through a narrow slit 12.0 cm wide. A microphone is placed 40.0 cm directly in front of the center of the slit corresponding to the O in the attachment. The microphone is then moved in a direction perpendicular to the line from the center of the slit to the point O. At what distances from O will the intensity detected by the microphone be zero.
Physics Ray Optics Level: University
Wave opticsAn FM radio station has a frequency of 107.9 MHZ and uses two identical antennas mounted at the same elevation 12.0 m apart. The antennas radiate in phase. The resulting radiation pattern has a maximum intensity along a horizontal line perpendicular to the line joining the antennas and midway between them. Assume that the intensity is observed at distances from the antennas that are much larger than 12.0m. At what angles (measured from the line of maximum intensity) the intensity is maximum and at what angle is it zero.
Physics Ray Optics Level: University
InterferenceCoherent light from a sodium-vapor lamp is passed through a filter that blocks everything except for the light of a single wavelength. It then falls on two slits separated by 0.460 mm. In the resulting interference pattern on a screen 2.20 m away adjacent bright fringes are separated by 2.82 mm. What is the wavelength?
Physics Ray Optics Level: University
ReflectionProve that a ray of light reflected from a plane mirror rotates through an angle 2 theta when the mirror rotates through an angle theta about an axis perpendicular to the plane of incidence.
Physics Ray Optics Level: University
RefractionA horizontal parallel-sided plate of glass having a refractive index of 1.52 is in contact with the surface of water in a tank. A ray coming from above in the air makes an angle of incidence of 35 degrees with the normal to the top of the surface of the glass. What angle does the ray refracted into the water makes with this angle does the ray refracted into the water makes with this angle on the refractive index of the glass?
Physics Ray Optics Level: University
Intensity & distanceThe intensity of a spherical wave is 4.0 m from the source is 120 w/m^2. What is the intensity at a point 9.0 m from the source?
(a) 11 w/m^2
(b) 24 w/m^2
(c) 53 w/m^2
(d) 80 w/m^2
(e) 270 w/m^2
Physics Ray Optics Level: University
RefractionAn object of height 3.00 cm is placed 12.0 cm from a diverging lens of focal length-12.0cm. Draw a ray diagram to find the height and position of the image.
Physics Ray Optics Level: University
Reflection by concave mirrorAn object is placed in front of a concave mirror with a 25.0 cm radius of curvature. A real image twice the size of the object is formed. At what distance is the object from the mirror? Diagram to illustrate.
Physics Ray Optics Level: University
RefractionA defect in a diamond appears to be 2.0 mm below the surface when viewed from directly above that surface. How far beneath the surface is the defect?
Physics Ray Optics Level: University
Polarization by Refraction(a) Sunlight reflected from the smooth ice surface of a frozen lake is totally polarized when the incident light is at what angle with respect to the horizontal? (b) In what direction is the reflected light polarized?
(c) Is any light incident at this angle transmitted into the ice? If so at what angle below the horizontal does the transmitted light travel?
Physics Ray Optics Level: University
Total internal ReflectionCalculate the critical angle for a sapphire surrounded by air.
Physics Ray Optics Level: University
RefractionA glass lens has a scratch- resistant plastic coating on it. The speed of light in the glass is 0.67c and the speed of light in the coating is 0.80c. A ray of light in the coating is incident on the plastic- glass boundary at an angle of 12.0 degree with respect to the normal. At what angle with respect to the normal is the ray transmitted into the glass?
Physics Ray Optics Level: University
RefractionSunlight strikes the surface of a lake at an angle of incidence of 30.0 degree . At what angle with respect to the normal would a fish see the sun?
Physics Ray Optics Level: University
ReflectionTwo plane mirrors form a 70 degree angle as seen below. For what angle theta is the final ray horizontal?
Question Diagram
Physics Ray Optics Level: University
ResolutionThe ratio telescope at Arecibo, Puetro Rico has a reflecting spherical bowl of 305 m (1000 ft) diameter. Radio signals can be received and emitted at various frequencies with appropriate antennae at the focal point of the reflecting bowl. At a frequency of 300 MHz what is the angle between two stars that can barely be resolved?
