Which of the following statements is true about electromagnetic radiation?
A)All molecules absorb electromagnetic radiation at some frequency.
B)Frequency is directly proportional to wavelength.
C)NMR uses the microwave region of the electromagnetic spectrum.
D)The radio frequency region of the electromagnetic spectrum has the largest energy per photon.
E)Energy is inversely proportional to frequency.

Question

Quizplus · Accepted Answer

All molecules have the ability to absorb electromagnetic radiation at certain frequencies, depending on their energy levels and the transitions that can occur between these levels. This is a fundamental principle in spectroscopy. Frequency and wavelength are inversely proportional, not directly (B is false). NMR spectroscopy uses radio frequencies, not microwaves (C is false). The radio frequency region has the lowest energy per photon, not the largest (D is false). Energy is directly proportional to frequency, according to the equation E = hν, where E is energy, h is Planck's constant, and ν (nu) is the frequency (E is false).

Which of the Following Statements Is True About Electromagnetic Radiation