객관식
A carbon–oxygen double bond within a sugar molecule absorbs electromagnetic radiation at a frequency of 6.0 x 1012 s-1. What portion of the electromagnetic spectrum does this represent?
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9. Electrons in Atoms and the Periodic Table
Electromagnetic Spectrum (Simplified)
객관식
Which of the following sources of electromagnetic radiation will have the highest energy?
A
Light A (595 nm)
B
Light B (0.0303 cm)
C
Light C (0.000510 m)
D
Light D (291 μm)
검증된 단계별 안내1
Understand that the energy of electromagnetic radiation is inversely proportional to its wavelength. This means shorter wavelengths correspond to higher energy.
Convert all given wavelengths to the same unit for easy comparison. Typically, nanometers (nm) or meters (m) are used. Remember: 1 cm = 10,000,000 nm, 1 m = 1,000,000,000 nm, and 1 μm = 1,000 nm.
Convert Light B (0.0303 cm) to nanometers: 0.0303 cm * 10,000,000 nm/cm.
Convert Light C (0.000510 m) to nanometers: 0.000510 m * 1,000,000,000 nm/m.
Convert Light D (291 μm) to nanometers: 291 μm * 1,000 nm/μm.
Compare the converted wavelengths. The light with the smallest wavelength in nanometers will have the highest energy.
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