1. An LED emit light waves whose wavelenghs is 490nm. What is the frequency for this light? (ans: 6.12x1014Hz) 2. A radio station has broadast at 107.5 MHz. What is the wavelengh of the radio waves that are produced? (ans 2.79m) 3. For cellphone 4G LTE operates at a frequency 1.90 GHz. What is the corresponding wavelengh the cellphone operates on? (15.8 cm) Show Work

1. An LED emit light waves whose wavelenghs is 490nm. What is the frequency for this light? (ans: 6.12x1014Hz) 2. A radio station has broadast at 107.5 MHz. What is the wavelengh of the radio waves that are produced? (ans 2.79m) 3. For cellphone 4G LTE operates at a frequency 1.90 GHz. What is the corresponding wavelengh the cellphone operates on? (15.8 cm) Show Work

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter34: Electromagnetic Waves

Section: Chapter Questions

Problem 34.10OQ

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