IB Physics Interference
/A tutorial sheet of some interference concepts in SL and HL is given below.
- Laser light is directed on two slits of width b and separation d. The interference pattern is observed on a screen at a distance D from the slits. How does the intensity pattern on the screen change when one of the slits is covered?
- A telescope can just resolve each star in a double star system when the observation is made in yellow light. In which light will the star images be not resolved, red light or blue light?
- Two synchronous sources are 0.50 m apart. Each source produces sound waves of wavelength 2.0 m. A microphone is initially at a distance of 10.0 m from each source. The intensity reading on the microphone is I. Draw a graph showing the intensity reading on the microphone as it is moved towards the sorrces on the bisector of the line joining the sources.
