Concept explainers
Interpretation:
Increasing order of energy for the given different wavelength has to be arranged; and the wavelength possesses the most energetic photons has to be identified.
Concept-Introduction:
Wavelength: The distance between successive peaks in a wave and measured in units of length.
Frequency: The number of waves passed a point in a certain amount of time.
Relation between wavelength and frequency:
Where, c is constant, the value of c is
Conversion of centimeter into meter (cm to m):
Explanation of Solution
Option (a): The wavelength is
Conversion of centimeter to meter is,
Therefore, the given value of wavelength in meter is
Calculating energy of the particular wavelength as follows,
Where, h is Planck constant,
Substituting this relation
Where, c is constant, the value of c is
The energy of given wavelength is
Option (b): The wavelength is
Conversion of micrometer to meter is,
Therefore, the given value of wavelength in meter is
Calculating energy of the particular wavelength as follows,
Where, h is Planck constant,
Substituting this relation
Where, c is constant, the value of c is
The energy of given wavelength is
Option (c): The given wavelength is
Conversion of nanometer to meter is,
Therefore, the given value of wavelength in meter is
Calculating energy of the particular wavelength as follows,
Where, h is Planck constant,
Substituting this relation
Where, c is constant, the value of c is
The energy of given wavelength is
Option (d): The given wavelength is
Conversion of millimeter to meter is,
Therefore, the given value of wavelength in meter is
Calculating energy of the particular wavelength as follows,
Where, h is Planck constant,
Substituting this relation
Where, c is constant, the value of c is
The energy of given wavelength is
Hence, the energy as follows,
Energy of option (a) is
Energy of option (b) is
Energy of option (c) is
Energy of option (d) is
Therefore, the increasing order of energy of the given wavelength is,
The wavelength of the most energetic photons is
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Chapter 2 Solutions
CHEMISTRY IN CONTEXT (LOOSE)-W/CONNECT
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