Traveling Electromagnetic Wave
Problem 34.22
Problem 34.45
Electromagnetic Waves Ranking Task
Electric and Magnetic Field Vectors Conceptual QuestionEnhanced EOC: Problem 34.14
Enhanced EOC: Problem 34.15
Enhanced EOC: Problem 34.21
Problem 34.16
Problem 34.17
Polarization of Light and Malus's Law
Problem 34.24
Problem 34.25
Problem 34.26
The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm (red) and 486 nm (blue). Light from a hydrogen lamp illuminates a diffraction grating with 500 lines/mm , and the light is observed on a screen 1.7 m behind the grating.
ReplyDeleteWhat is the distance between the first-order red and blue fringes?
Sound with frequency 1230 Hz leaves a room through a doorway with a width of 1.13 m .
ReplyDeleteAt what minimum angle relative to the centerline perpendicular to the doorway will someone outside the room hear no sound?
Use 344 m/s for the speed of sound in air and assume that the source and listener are both far enough from the doorway for Fraunhofer diffraction to apply. You can ignore effects of reflections.