Exam 24: Wave Optics

A Young's double-slit apparatus is set up so that a screen is positioned 2.1 m from the double slits,and the spacing between the two slits is 0.033 mm.What is the distance between alternating bright fringes on the screen if the light source has a wavelength of 678 nm? (1 nm = 10−⁹ m)

In a single-slit diffraction experiment,the angular width of the central maximum is 0.16°.The width of the slit is then doubled as is the distance to the screen.What is the resulting angular width of the central maximum?

Two narrow slits are 0.0280 mm apart.When a laser shines on them,bright fringes form on a screen that is a meter away.These fringes are 6.06 cm apart.What is the separation between the second-order bright fringe and the central fringe?

The center spot of Newton's rings is dark.This destructive interference occurs because:

Two beams of coherent light are shining on the same piece of white paper.With respect to the crests and troughs of such waves,darkness will occur on the paper where:

In a Young's double-slit interference apparatus,by what factor is the distance between adjacent light and dark fringes changed when the wavelength of the source is doubled?

Light is reflecting off a wedge-shaped thin piece of glass producing bright and dark interference fringes.If a certain location has a bright fringe,a nearby point will have a dark fringe if the thickness of the glass increases by:

In a Young's double-slit experiment,how many maxima occur between the 5^th-order maxima?

After light from a source passes through two slits,a first-order bright spot is seen on the wall at point P.Which distance is equal to the wavelength of the light?

Polaroid sunglasses help when skiing on snow on a sunny day by reducing the sunlight from the snow.This light from the snow has been polarized by:

In a Young's double-slit experiment,what happens to the angular separation between the fringes when the wavelength is increased at the same time that the slit separation is decreased?

Polarization of light can be achieved using a dichroic material like Polaroid by which of the following processes?

A Young's double-slit apparatus is set up.The source wavelength is 424 nm,and the double-slit spacing is 0.0560 mm.At what distance from the double slits should the screen be placed if the spacing between alternating bright fringes is to be 1.60 cm? (1 nm = 10−⁹ m)

Unpolarized light is passed through polarizer 1.The light then goes though polarizer 2 with its plane of polarization at 35.8° to that of polarizer 1.Polarizer 3 is placed after polarizer 2.Polarizer 3 has its plane of polarization at 58.8° to the plane of polarization of polarizer 2 and at 94.6° to that of polarizer 1.What fraction of the intensity of the original light gets though the last polarizer?

In a Young's double-slit interference apparatus,by what factor is the distance between adjacent light and dark fringes changed when the separation between slits is tripled?

A silicon monoxide thin film (n = 1.45)of thickness 77.6 nm is applied to a camera lens made of glass (n = 1.55).This will result in a destructive interference for reflected light of what wavelength?