Which of the following statements is true about electromagnetic radiation? optio
ID: 985850 • Letter: W
Question
Which of the following statements is true about electromagnetic radiation?
options:
All molecules will absorb electromagnetic radiation at some frequency.
Frequency is directly proportional to wavelength.
NMR uses the microwave region of the electromagnetic spectrum.
The radio frequency region of the electromagnetic spectrum has the largest energy per photon.
Energy is inversely proportional to frequency.
All molecules will absorb electromagnetic radiation at some frequency.
Frequency is directly proportional to wavelength.
NMR uses the microwave region of the electromagnetic spectrum.
The radio frequency region of the electromagnetic spectrum has the largest energy per photon.
Energy is inversely proportional to frequency.
Explanation / Answer
The true staement is 'All molecules will absorb electromagnetic radiation at some frequency.'
Reason:
v =c/ lambda lambda= wave length, c = velocity of light
Frequency is inversely proportional to wavelength and not directly proportional.
NMR uses the radio frequency region of the electromagnetic spectrum and not the microwave region
The radio frequency region of the electromagnetic spectrum has the lowest energy per photon.and not the highest
E= hv Energy is directly proportional to frequency.and not inversely proportional .
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