Page 1: Question 1 (1 point) 1 2 3 Light source Path of light beam Stationary 4 5 6 mirror 7 8 9 8-sided rotating mirror 10 Light detector In a Michelson-type experiment, the path shown by a beam of light when the eight- sided mirror is at rest is shown. The detector indicates a maximum signal. The distance between the eight sided mirror and the stationary mirror is 68.06 km. As the eight-sided mirror begins to rotate, the beam no longer follows this path and the detector indicates a decreased signal. Determine the frequency of rotation for which the detector will first indicate a maximum signal. (answer in Hz and round to the nearest whole number) Your Answer: AnswerPage 1: Question 2 (1 point) 2 3 A student doing Young's experiment finds that the distance between the central bright fringe and the 5th nodal line is 7.9 cm. If the screen is located 3.7 m from the 4 5 6 two slits, whose separation is 8.4 x10-4 m, what is the wavelength of the light measured in nm? 8 9 (answer in nm and round to the nearest whole number) Your Answer: 10 Answer units Question 3 (1 point) A B For the wave shown, the distance from point A to point B is 1.7 m. What is the wavelength? (round answer to two decimal places) Your Answer: Answer unitsPage 1: Question 4 (1 point) 1 2 3 A radar beam is directed toward a cliff face. A time of 0.00056 s passes from the instant the beam is sent and returns to the detector. The distance from the radar to 4 5 6 the cliff face is ____ km. (answer in km and round to the nearest whole number) 8 9 Your Answer: 10 Answer units Question 5 (1 point) In an investigation, a group of students directs light from a laser pointer at a diffraction grating that has a line spacing of 1078 lines/mm. A series of bright spots appears on a screen placed 1.67 m from the grating. The students measure a distance of 55.10 cm between the central bright spot and the first order bright spot. Based on the students' measurements, the wavelength of the light emitted by the laser pointer, expressed is_ nm. (answer in nm and round to one decimal place) Your Answer: Answer units