Monochromatic, coherent light is incident on a pair of very narrow slits. The first order bright spot (m=1) occurs for an angle of 22 degrees as measured from the central bright spot. Which of the following angles best describes where the second order bright spot (m=2) would occur? a) at an angle slightly larger than 44 degrees b) at exactly 44 degrees c) at an angle slightly less than 44 degrees

A nearly monochromatic beam of light with an average wavelength of 516 nm is incident normally on a diffraction grating 2.90 cm wide with 1300 lines/cm. What is the smallest wavelength difference (in nm) this grating can resolve in the second order diffraction with this beam?Type your answer here

A light source is directed through a diffraction grating such that it produces an interference pattern on a screen. If the spectrum on the screen is nearly continuous, with the exception of 3 small dark lines. Which of the following is most likely the light source? O A white light source O A white light source passing through a cool gas O An electrically charged gas O A hot gas

A physicist is calibrating a spectrometer that uses a diffraction grating to separate light in order of increasing wavelength  (?A,?B, and ?C). He observes three distinct first-order spectral lines at the following respective angles ?m (where m denotes order). ?1 = 12.8°, ?1 = 14.2°, ?1 = 15.0° (a)If the grating has 3,760 grooves per centimeter, what wavelength (in nm) describes each of these spectral lines? at ?1 = 12.8°    ?A=         nm ?1 = 14.2°       ?B=         nm ?1 = 15.0°        ?C=.        nm (b) At what angle (in degrees) would each of these lines be found in the second-order spectrum? for ?A      ?2=   ° for ?B      ?2=    ° for ?C     ?2=   °

PROBLEM 4: A transmitter is transmitting radio signal of 50 MHz with 100 kW output power. Find the field strength due to space wave at a distance of 100 km when the heights of transmitting and receiving antennas are 100 m and 36 m respectively. Assume that the field strength from the transmitting antenna is same as that of half wave antenna.

two em waves of same (600 nm) wavelength with frequency difference of 0.1ghz. While travelling through a dispersive medium an interferometer is used to measure their wavelength difference pf 0.001 nm. What is the group velocity of the wave combination in that medium

The diameter of the Arecibo radio telescope is 307 m. It can image radio source that emit electromagnetic waves with wavelength between 3 cm and 1 m. The Virgo Cluster is a cluster of galaxies whose center is ~53.8 Mly away from us. Assume the telescope is imaging at a wavelength of 63.3 cm and can just resolve two point sources of radio waves in the Virgo cluster. How close together could these point sources be, i.e. what is the minim distance between them in ly? Enter an integer.