CHM 1045 Lecture Notes - Lecture 3: Photon, Barcode Reader, Microwave Oven
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The number of waves = the number of cycles. Sample problem: calculate the wavelength (in nm) of the red light emitted by a barcode scanner that has a frequency of 4. 62 x 10^14 s-1. Determine which of the following statements are false, and correct them: a. electromagnetic radiation is incapable of passing through water. False, capable: b. electromagnetic radiation travels through a vacuum at a constant speed, regardless of wavelength. True: c. infrared light has higher frequencies than visible light. False, low frequencies: d. the glow from a fireplace and the energy within the microwave oven are all forms of electromagnetic radiation. An argon ion laser emits light at 489 nm. Wave behavior properties: interference: the interaction between waves (e. g. , electromagnetic, ocean) is called interference, interference types:
