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Unformatted text preview: chauhan (mmc2762) – Jan 24 HW – sparks – (51150) 1 This print-out should have 7 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. Preview sections 12.7 - 12.10. You will continue to see prerequisite knowledge topics on homework assignments for your practice. (Isotopes are covered on this one.) Be sure to look at the list of prerequisite topics and practice problems in the course packet! 001 10.0 points According to the results of Einstein’s photo- electric effect experiment 1. there is a threshold temperature; at higher temperatures, photoelectrons are pro- duced while at lower temperatures they are not. 2. there is a threshold intensity; at higher intensity, photoelectrons are produced while at lower intensity they are not. 3. there is a threshold frequency; at higher frequency, photoelectrons are produced while at lower frequency they are not. correct 4. there is a threshold wavelength; at longer wavelengths, photoelectrons are pro- duced while at shorter wavelengths they are...
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This note was uploaded on 04/03/2012 for the course CHEM 56920 taught by Professor Sparks during the Spring '12 term at University of Texas.
- Spring '12