pq19ans - the fringes are too close together to easily...

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PHYS-1200 PHYSICS II SPRING 2005 Post Quiz 19 Name___________ ANSWERS _________________ In the space provided, to the left of the question number, write the letter corresponding to the best answer to the question. _C _ 1. The reason there are two slits, rather than one, in Young’s experiment is: A. to increase the intensity B. one slit is for frequency and one is for wavelength C. to create a path length difference D. one slit is for E fields and the other for B fields E. two slits in parallel offer less resistance _A _ 2. In an experiment to measure the wavelength of light using a double slit, it is found that
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Unformatted text preview: the fringes are too close together to easily count them. To spread out the fringe pattern, one could: A. halve the slit separation B. double the slit separation C. double the width of each slit D. halve the width of each slit E. none of these _B _ 3. When light passes from air into glass it experiences a change of: A. frequency and speed B. speed and wavelength C. frequency and wavelength D. frequency, speed and wavelength E. speed only...
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