Physics Wave Optics Level: Misc Level
Consider an oil film (n=1.50) on water (n=1.33) and light of wavelength 600 nm in air, incident on the film. The minimum film thickness for constructive interference of the light in air is;
a. 100 nm
b.113. nm
c. 150. nm
d. 200.nm
Physics Wave Optics Level: Misc Level
A convex lens is placed on a flat glass plate and illuminated from above with monochromatic red light. When viewed from above, concentric bands of red and dark are observed. what does one observe at the exact center of the lens whenre the lens and the glass plate are in direct contact?
a. A bright red spotb.
b. A dark spot
c. A rainbow of color
d. A bright spot that is some color other than red
Physics Wave Optics Level: Misc Level
For a beam of light, the direction of polarization is defined as
a. the beam,s direction of travel.
b. the direction of the electric field,s vibration.
c. the direction of the magneticfield,s vibration.
d. the direction that is mutually perpendicular to the electric and magnetic field vectors.
Physics Wave Optics Level: Misc Level
Assuming that h is the wavelength of light in oil, for an oil film on water, constructive interference occurs with the minimum film thickness of;
a.h/4
b.h/2
c.h
d.2h
Physics Wave Optics Level: Misc Level
We have seen that two monochromatic light waves can interfere constructively or destructively,depending on their phase difference. one consequence of this phenomena is
a. the formation of an image by a converging lens,such as the lens in your eye.
b.the colors you see when white light is reflected from a soap bubble.
c. the appearance of a mirge in the desert.
d. a rainbow.
e. the way in which polaroid sunglasses work.
Physics Wave Optics Level: Misc Level
The property of light by which it bends around small objects is called;
a.Dispersion
b. Resolution
c.Diffraction
d.Chromatic Aberration
Physics Wave Optics Level: Misc Level
Assuming that h is the wavelength of light in oil, for an oil film on water, constructive interference occurs with the minimum film thickness of:
a.h
b.2 h
c.h/4
d.h/2
Physics Wave Optics Level: Misc Level
If two light waves are coherent, which of the following is NOT necessary?
a.They must have the same frequency.
b.They must have the same velocity.
c. They must have the same amplitude.
d.They must have the same wavelength.
e.They must have a constant phase difference at every point in spsce.
Physics Wave Optics Level: Misc Level
The index of refraction of diamond is 2.42.This means that a given wavelength of light travels
a.2.42 times faster in diamond than it does in vacuum.
b. 2.42 times faster in air than it does in diamond.
c.2.42 times faster in diamond than it does in air.
d.2.42 times faster in vacuum than it does in diamond.
Physics Wave Optics Level: Misc Level
For a beam of light, the direction of polarization is defined as
a.the direction of the electric field,s vibration.
b.the direction of the magnetic field,s vibration.
c.the beam,s direction of travel.
d.the direction that is mutually perpendicular to the electric and magnetic field vectors.
Physics Wave Optics Level: Misc Level
Consider two diffraction gratings with the same slit separation, the only difference being that one grating has 3 slits and the other 4 slits. If both gratings are illuminated with a beam of the same monochromatic light,
a.both gratings produce the same separation between orders.
b. the grating with 4 slits produces the greater separation between orders.
c.both gratings produce the same separation between orders,but the orders are better defined with the 4- slit grating.
d. the grating with 3 slits produces the greater separation between orders.
Physics Wave Optics Level: Misc Level
In a thin water film in air, there are exactly 80 wavelengths of blue light inside the film. The reflected light from the two surfaces of the film will:
a.Be brightest in the blue part of the spectrum.
b.Have the normal amount of blue light.
c.None of the options.
d.Be deficient in blue light.
Physics Wave Optics Level: Misc Level
Completely polarized light is passed through a polarizing sheet. The light that passes through has an intensity of 50% of the incident beam. The angle between the direction of polarization of the incident beam and the direction of polarization of the sheet must be:
a. 30%
b.45%
c.90%
d.60%
Physics Wave Optics Level: Misc Level
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 Wave Optics Level: Misc Level
Monochromatic light of wavelength 469 nm illuminates two parallel narrow slits 6.63 um apart. Calculate the angular deviation of the third- order (for m=3) bright fringe.
