Page 1: Question 6 (1 point) 1 2 3 Grating Position I 4 5 6 a 7 8 10 Receiver Microwave generator Position II In a laboratory experiment, a microwave generator is used to produce a beam of monochromatic microwaces. These waves are incident on a series of metal tubes that form a diffraction grating. The metal tubes are spaced 2.98 cm apart. When the microwave signal passes through the grating, a reciever placed 1.1 m from the grating recieves a maximum signal. A first order maximum is also detected at position I and position II. The angle from the central maximum to either position I or II is 70.4 degrees. Calculate the experimental wavelength of the microwaves, in centimetres. (answer in cm and round to two decimal places) Your Answer: Answer units Page 1: 1 2 3 4 5 6 7 8 15 10 a Question 7 (1 point) A student using a diffraction grating ruled with 4.4 x 104 lines/m to measure the frequency of some monochromatic light. The nodal lines are 0.064 m apart at a distance of 2.6 m from the grating. The frequency of the light source is Hz. (round your answer to two decimal places) Your Answer: 1014 Answer Question 8 (1 point) Source M2 M1 16. 8 Mt. Wilson Telescope Mt. San Antonio In the Michelson type experiment, the speed of light is determined to be 2.99x108 m/s. The rotating mirror has 11 sides and the frequency of the rotating mirror is 33 hz. The distance between mountains is _ km (The picture is just an example and does not accurately depict the question) (answer in km and round answer to the nearest whole number) Page 1: 1 2 3 4 7 5 10 6 a 8 Your Answer: Answer units Question 9 (1 point) The wavelength for an radio wave is 2.77x106 m. Calculate the frequency. (round answer to 2 decimal places) Your Answer: Answer units Question 10 (1 point) Light of frequency 3.2 x 1014 Hz is incident on a pair of straight parallel slits where the slits are 0.71 mm apart. It creates an interference pattern on a screen 8.4 m away. What is the distance from the centre of the pattern to the 6th bright line? {round your answer to 2 decimal places) Your Answer: Answer units