Optics Answers

Coherent microwaves of wavelength 5.00cm enter a tall, narrow window in a building otherwise essentially opaque to the microwaves. If the window is 36.0cm wide, what is the distance from the central maximum to the first-order minimum along a wall 6.50m from the window?

Sound with a frequency of 650Hz from a distant source passes through a doorway. 1.10m wide in a sound absorbing wall. Find

(a) the number and (b) the angular directions of the diffraction minima at listening positions along a line parallel to the wall.

Helium-neon laser light of wavelength 632.8 nm is sent through a 0.300mm wide single slit. What is the width of central maximum on a screen 1.00 m from the slit?

Light of wavelength 587.5 nm illuminates a slit of width 0.75 mm.

(a) At what distance from the slit should a screen be placed if the first minimum in the diffraction pattern is to be 0.85mm from the central maximum?

(b) Calculate the width of the central maximum.

Consider a wave passing through a single slit. What happens to the width of the central maximum of its diffraction pattern as the slit is made half as wide as the first?

A. It becomes one-fourth as wide.

B. It becomes one half as wide

C. Its width does not change

D. It becomes twice as wide.

A Fraunhofer diffraction pattern is produced on a screen located 1.00m from a single slit. If a light source of wavelength 5.00 x 10^(-7) m is used and the distance from the center of the central bright fringe to the first dark fringe is 5.00 x 10^(-3) m, what is the slit width?

The 2 speakers of a boom box are 35.0 cm apart. A single oscillator makes the speaker vibrate in phase at a frequency of 2.00kHz. At what angles, measured from the perpendicular bisector of the line joining the speakers, would a distant observer hear (a) maximum sound intensity?

(b) minimum sound intensity?

(Speed of sound = 340m/s)

Distinguish btw stationary and progressive waves

Two slits are separated by 0.320 mm. A beam of 500nm light strikes the slits, producing an interference pattern. Determine the number of maxima observed in the angular range -30.0degree < s < 30.0degree, where s is an angle

A laser beam is incident on 2 slits with a separation of 0.200nm and a screen is placed 5.00m from the slits. An interference pattern appears on the screen. If the angle from the center fringe to the first bright fringe to the side is 0.181 degree, what is the wavelength of the laser light?