Physics Ray Optics Level: University
DiffractionThe first two dark fringes on one side of the central maximum in a single-slit diffraction pattern are 1.0 mm apart. The wavelength of the light is 610 mm and the screen is 1.0 m from the slit. What is the slit width?
Physics Ray Optics Level: University
DiffractionLight from a helium-neon laser (630 mm) is incident on a pair of slits. In the interference pattern on a screen 1.5m from the slits, the bright fringes are separated by 1.35cm. What is the slit separation?
Physics Ray Optics Level: University
InterferenceA thin film of oil ( n = 1.50) of thickness 0.40 micro m is spread over a puddle of water (n = 1.33). For which wavelength in the visible spectrum do you expect constructive interference for reflection at normal incidence?
Physics Ray Optics Level: University
TelescopeThe objective lens of an astronomical telescope forms an image of a distant object at the focal point of the eyepiece which has a focal length of 5.0 cm. If the two lenses are 45.0 cm apart what is the angular magnification?
Physics Ray Optics Level: University
MagnificationKeesha is looking at a beetle with a magnifying glass. She wants to see an upright enlarged image at a distance of 25 cm. The focal legth of the magnifying glass is +5.0 cm. Assume that keesha s eye is close to the magnifying glass. (a) What should be the distance between the magnifying glass and the beetle? (b) What is the angular magnification?
Physics Ray Optics Level: University
Suppose that the lens system (cornea + lens) in a particular eye has a focal length that can very between 1.85 and 2.00 cm but the distance from the lens system to the retina is only 1.90 cm (a) Is this eye nearsighted or farsighted? Explain. (b) What range of distances can the eye see clearly without corrective lenses?
(Assume that the normal near point is 25 cm)
Physics Ray Optics Level: University
Lens formulaA photographer wishes to take a photograph of the Eiffel tower (300 m tall) from across the seine river a distance of 300 m from the tower. What focal length lens should she use to get an image that is 20 mm high on the film? (For 35 mm film each cell is 24 mm high by 36 mm wide)
Physics Ray Optics Level: University
LightA converging lens and a diverging lens separated by a distance of 30.0 cm are used in combination. The converging lens a focal length 15.0 cm. The diverging lens is of unknown focal length. An object is placed 20.0 cm in front of the converging lens the final image is virtual and is formed 12.0 cm before the diverging lens. What is the focal length of the diverging lens?
Physics Ray Optics Level: High School
Polarization
Three polarizing disks whose planes are parallel are centered on a common axis . The directions of the transmission axes relative to the common vertical direction are shown . A linearly polarized beam of light with the plane of polarization parallel to the vertical reference direction is incident from the left on the first disk with intensity Ii = 1.89 units (arbitrary) . Calculate the transmitted intensity If when theta 1 = 17.4 degree , theta 2 = 38.2 degree , theta 3 = 77.8 degree .
Question Diagram
Physics Ray Optics Level: High School
Polarization
Three polarizing disks whose planes are parallel are centered on a common axis . The directions of the transmission axes relative to the common vertical direction are shown . A linearly polarized beam of light with the plane of polarization parallel to the vertical reference direction is incident from the left on the first disk with intensity Ii = 1.89 units (arbitrary) . Calculate the transmitted intensity If when theta 1 = 17.4 degree , theta 2 = 38.2 degree , theta 3 = 77.8 degree .Question Diagram
Physics Ray Optics Level: High School
polarization
The figure at below shows a set of polaroids arranged so that initially unpolarized light of intensity Io passes through them in succession (#1 through #4 in order), Polaroid # 1 has a vertical transmission axis , and each successive polaroid is rotated by an angle of theta = 90 degree/3 = 30 degree with respect to the previous one , This means that polaroid #4 has a horizontal transmission axis .
a) What is the intensity of the light in the region between polaroids #2 and #3 , in terns of Io ?
b) What is the intensity of the light after it passes through polaroid #4 , in terms of Io ?
Question Diagram
Physics Ray Optics Level: High School
Wave optics
Calculate the transmission frequency of an FM station in which the wavelength is 3.0 m .
Physics Ray Optics Level: High School
Rayoptics
Calculate the wavelength of a beam of visible violet light .
Physics Ray Optics Level: High School
Suppose that Young’s experiment is performed with light of wavelength 548 nm . The slits are 1.16 mm apart , and the viewing screen is 4.12 m from the slits . How far apart are the bright fringes in meters ?
Physics Ray Optics Level: High School
Monochromatic light of wavelength 469 nm illuminates two parallel narrow slits 6.63 micro m apart . Calculate the angular deviation of the third-order (for m = 3) bright fringe