Multiple Choice
What is the wavelength of light emitted (in nm) when the electron in a hydrogen atom moves from n=4 to n=2?
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9. Quantum Mechanics
Wavelength and Frequency
Multiple Choice
What is the wavelength of 7000 Å in nanometers (nm)?
A
7000 nm
B
70 nm
C
700 nm
D
0.7 nm
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Verified step by step guidance1
Understand the relationship between angstroms (Å) and nanometers (nm). 1 Å is equal to 0.1 nm.
To convert a wavelength from angstroms to nanometers, multiply the value in angstroms by 0.1.
Apply the conversion factor to the given wavelength: 7000 Å.
Calculate the product of 7000 and 0.1 to find the wavelength in nanometers.
Verify the conversion by checking that the units are consistent and the calculation aligns with the conversion factor.
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