6738

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

6737

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

6734

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.

6733

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

6731

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.

6730

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

6331

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

6327

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.

6326

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.

6324

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.

6322

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.

6300

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.

6274

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%

6112

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?

6111

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.

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