QUESTION 9 A heat lamp produces 20.8 watts of power at a wavelength of 525 nm. How many photons are emitted per second? (1 watt = 1 J/s). QUESTION 10 Calculate the frequency of light with wavelength 28 mm. QUESTION 11 Calculate the de Broglie wavelength of a 236 g baseball travelling at 55 m/s.

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter5: Electron Configurations And The Periodic Table
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QUESTION 9
A heat lamp produces 20.8 watts of power at a wavelength of 525 nm. How many photons are emitted per second? (1 watt = 1 J/s).
QUESTION 10
Calculate the frequency of light with wavelength 28 mm.
QUESTION 11
Calculate the de Broglie wavelength of a 236 g baseball travelling at 55 m/s.
Transcribed Image Text:QUESTION 9 A heat lamp produces 20.8 watts of power at a wavelength of 525 nm. How many photons are emitted per second? (1 watt = 1 J/s). QUESTION 10 Calculate the frequency of light with wavelength 28 mm. QUESTION 11 Calculate the de Broglie wavelength of a 236 g baseball travelling at 55 m/s.
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